I probably shouldn't bother, but I'm inexplicably drawn to these kinds of threads sometimes. *cracks knuckles*
Because Khan's planet was meant as a prison, more or less.
That comment is meaningless as far as this discussion goes.
How the hell is it
meaningless? You asked why people didn't have a problem with Kahn getting his own planet. The fact that Kahn was FORCED to go to said planet BY the Feds as punishment could, just maybe, have something to do with why the Feds don't have a problem with him being there. And clearly, it wasn't a planet of any particular value... hence, a good place to stick Kahn.
You brought Kahn and his exile up in the first place, and you call the above response meaningless? That doesn't make a lot of sense.
So. It IS about what they HAVE.
Uh... yeah. As you said earlier, if the Ba'ku planet didn't have this crazy radiation, there wouldn't be a fuss. This isn't in dispute. For that matter... The fact that the controversy is over the radiation is in itself an argument
against the idea that the Feds actions are imperialistic. If the planet was just a planet, and the Feds decided to kick the Ba'ku off cause they just need another planet to colonize, that might be imperialistic, since there are plenty of other planets they could colonize. If the resource in question were, say, dilithium, and they had to either evict or kill the Ba'ku to get it, that might be imperialistic, since there are plenty of other sources of it. I said "might" for both of the above examples cause it
is already the Feds planet, unlike the examples you gave (below) of oil in Saudi Arabia or the European colonization of Native America, but still, my point is that in those scenarios, you'd have a much stronger argument.
But it's NOT about the planet or a common resource that the Feds already have some of, and just want more. It's about a completely unique, non-duplicatable property that has the potential to improve the living condition and prolong the lifespan of BILLIONS of people by very significant amounts. Said property can
only be obtained by harvesting these particles, which can
only be found on this planet, and
cannot be harvested without removing the Ba'ku. You seriously equate that with the many real-world examples of imperialism that have come up in real human history which basically boiled down to "We want more land/stuff. They have some. And they can't stop us. Let's take it!"
I'd ask again why we don't take what the Saudis have (oil) seeing as it would be of such benefit tou our Nation?
Before you say it- it's a sovereign nation, right? Don't the Ba'ku get to declare themselves sovereign too?
On a Federation world? No, they don't get to "declare themselves sovereign", not on that planet anyway, without first contacting the Feds first and working something out.
And before you say it- the Federation laid claim to that sector first, right? Like the Native Americans we kicked out of their lands?
Uhh...

What are you going for here? Who are the Native Americans in this analogy? The Ba'ku? Sure, they're being kicked out of their home, but on the other hand, the "land" (planet) was in fact owned by the Feds
before the Ba'ku ever set foot on it. So the analogy doesn't really work.
Nope, it's in the name of Imperialism that you speak, Ryu.
the Baku/radiation thing gives an unsympathetic perspective on the Baku
Oh, sorry, an act of Imperialism against UNSYMPATHETIC peeps. I guess that finishes the justification, eh?
You really love those smilies. Now let me ask YOU a question, regarding the supposed "Imperialism" of the Feds actions.
What, exactly, gives the Ba'ku the right to hoard the positive effects of the life-enhancing particles for themselves? What gives them the right to lay claim to a world with such a unique resource when that world isn't their original home, and in fact, exists within the territory of a well-established civilization? Why do the rights of the Ba'ku supercede the rights of the billions of Federation citizens who could benefit from the tapping of this resource?
Once again, too close to the bone for comment?
I'll call this a moral win for my POV if there are no further challenges.
I won't touch the "too close to the bone" thing.
But, moral victory? Further challenges? This ain't a murder trial, dude.