He has a precise mission to accomplish: Go and destroy the earth. And what does he do? All he does is fart around the whole movie... I mean with villains like that, who needs good guys?
First thing's first, we need to keep in mind that the villain's name matches the scope of the movie and Shinzon is an amalgamation of - in no order - the words "zone" and "sh-- (wait, they can't say that word unless it's on that cartoon show with the creepy children who said it 90+ times in that one episode...)"
Shinzon's anger should be toward the Romulans who created but didn't humanely abort their little lab experiment in a highly contrived means to infiltrate Starfleet via a clone of Picard to teach them how to bake magic brownies or something.
Revenge also to those Remans for all the abuse they pummeled him with (but not the ones who helped him build that ship in the background with no sensor noticing a dang thing anywhere... or the TLDR moment: "this movie contrives so much in a shallow attempt to be deep").
Of course, let's humor the unstated notion that Shinzon might be insane (or at least using any teensy thing Picard loved to get him mad - so why not the woman from the season 6 episode or his fried family or the whole of "The Federation"(tm)" instead of a big blue lump in space before it became tealified...), but the script is so much bunkum in so many ways it's not much worth entertaining because - and here's yet another nitpick - using Earth out of the blue as a focal point for nothing more than a throwaway climax is just lame and Trek generally avoids that. Earth wasn't even peripheral in the script and nobody cared about the tree Picard etched his initials into before getting by Boothby not to or whatever that scene was...
That said, the movie has a couple set pieces but even "Conspiracy", which has a similar problem with "connect the dots" and "glossed over dialogue to get from point A to B", is still a better-crafted story and doesn't need huge epic-- sigh, and I like the ramming scene but it almost felt like they had a great idea to do a space ram and scribbled a movie around it.
As for the rest, it's as if it was written by two (or more) writers who didn't read each other's notes. I mean the head of the Romulan rogues addresses Shinzon: "We went along with your assassination of the senate." What? It's a Romulan senator that assassinated the senate, not Shinzon. He may have provided the weapon but that's a far cry for doing it himself!
I suspect psychology, Romulan in this case, is a little more complex. Or human psychology since the show can only do different things to only the extent that audiences won't bugger off out of indifference. Man, I watch too many British comedies, their euphemisms are too much!
As for the Romulan woman (the one that wanted to sleep with Shinzon), she starts talking about sins!!! what? I mean they just assassinated the Senate, that seems sinful plenty to me.
As much as some of the screenplay writers lacked writing experience - or the best they could do was a plot hole-packed movie involving Roman times and only had great visual effects and thus won a ton of awards for being the best thing ever made... again, NEM is chock full of ideas -- way too many to be fleshed out properly and some were just too contrived to suspend disbelief over.
Everything they do in that movie is just stupid!
Oops, I should have started reading the next paragraph - I just covered some of this, LOL!
Including Data. I mean why would he deactivate his brother? Because he was programmed to spy on them? So what? Why wasn't Data deactivated when he tried to melt Geordi's brain? Looks like Data believes in double standard among robots...
And just how many more did Soong cobble up and bury in various parts of the galaxy to begin with? By TNG season 7 it was beyond trite in "exploring Data's family"(tm) then we meet Data's "mommy" too. That dude had some ego problems man, with Lore as he was made first, all Soong needed to do was to reprogram the subroutines and other function and object calls instead of disassembling him and putting him in a dry ice locker with the butt now-understandably mooning the camera (and by extension the viewers) after Riker activated the door-open sequence, and there's never been a nicer looking virtual tush, but that's another story...
Anyway, when Data puts the beaming thing on Picard they were seconds away from destroying all the crew on Enterprise and all that Picard was doing is staring in front of him not moving! Hello!!! You have a mission!! Snap out of it already!! Just one question: Why couldn't he have two of these tags?
The script avoids it, because... drama?
But let's try something in-universe: California proposition 65 states wearing two of them will cause cancer. I suppose.
Shinzon was able to beam Picard from his ship in spite of every safeguard... So why couldn't he have done it a second time after Picard escaped?
They just needed the story to go elsewhere instead of flowing organically from within.
Beverly says that the particles destroy life..." at the subatomic level"!!! There's no such thing as life at the subatomic level!!! Life only exists at the cellular level... at least. Let's how the hell would that work. Does the particle say to itself let's see, this proton belongs to a living cell so I am destroying it, that one doesn't so I'll leave it alone!!!
Naah. Melodrama as rich and flaky as this puts all those tasty brownies and magical pie crusts to shame...
B4 has to be the stupidest robot ever!! What was Soong trying to make? A toaster? And he decided to give it a humanoid form...
Pretty much. The tv trope of shoehorning someone in out of the blue doesn't exactly have much in any way other than "diminishing returns". Unless we can get a way to have people forgetting then those surprise twists won't diminish ever again. "Hey chef, get me some more of that brownie mix and add in the following ingredient'--" "Only if it's legal!" "It is in some states! So get some cheeseburgers for afterward too!"
As for Data, he can't whistle (as was recounted by Riker) but he can play the violin like a virtuoso... I am sorry but the only people who can't whistle are the ones that are tone-deaf... And these can't play the violin!!!! I mean you can play the piano if you are deaf (even) because there are keys (although your playing will not be very good). But on a violin, you need to determine precisely where to put your finger... BY EAR!!!
Anyway... whatever!!
Generally, even a crap story has one or two set pieces that still genuinely had some potential or were good. That ramming scene almost makes up for a lot in this movie-- but if this were the beginning of a 2-part movie, which it wasn't because the movie posters pretty much sledgehammered the audience with "the final journey blah blah blah", then whatever part 2 was and surely it would have been scripted to explain away so many of NEM's more bizarre issues...
Riker's whistle reference is probably to bookend TNG's premiere. It's a bookend as pointless as Shinzon wanting to destroy something completely unrelated to his problem (which Picard clearly was not, which reminds - this is the other set piece that's worthy in that Picard is tolerating and trying to find ways to accept him legitimately and completely. Shinzon is so off his rocker... yet for a crazy guy could still draw up blueprints and schematics for that ship and get it built with no sensor going "beep beep" anywhere...