No, I mean, none of what was posted makes sense. What evisceration? When was Star Trek for kids? Kids watched it, but when was it for kids? Star Trek has always featured, in some form, sex, violence, political intrigue, and romance. Are you talking about a Star Trek no one saw? New films that no one saw? If you want to talk explosions and "evisceration", don't look to the new movies, what did you think of Star Trek: The Wrath of Khan from 1982? You know, the movie that fans prize and adore, and wasn't made in this century? Remember where Khan murdered the Regula 1 crew? Where the Ceti eels oozed out of Chekov's ear, the same Ceti eel that had Captain __ try to murder our heroes until he was vaporized?
What about Star Trek III where McCoy is put in an insane asylum? Where a science vessel is blown to smithereens, killing all hands except our protagonists? Where Kirk, the hero, steals a Federation starship? Where Spock experiences the blood madness of Pon Farr and Saavik essentially has sex with him to cool his engines? Where Kirk's young son, David, is stabbed in the back, murdered by Klingons? Where Kirk and Kruge fight to the death and Kruge is kicked into a river of lava, being incinerated in the process?
Star Trek V where we see a three breasted woman dancing on a table top while three ambassadors discuss politics in a bar, sitting in a city that is taken over by terrorists who threaten their deaths if they don't get a starship? The cult leader flies them to the center of the galaxy where they meet God and promptly attempt to kill him after he tortures them like they were playthings? The discussion of life, the universe, philosophy, and what it means to really believe?
Star Trek VI! Holy shit! Kirk is okay with genocide! Racism and bigotry all through the film! The Chancellor of the High Council murdered, blood spattering everywhere! McCoy trying to save him, beating him in the chest, across his bloody wound as they're arrested and put on trial! Scotty calling Azetbur, the daughter of the Klingon Chancellor a bitch and stated that she must have killed her father! McCoy and Kirk sent to a gulag and forced to work the mines under threat of death! Kirk getting into a fight with a giant creature, whom he defeats by kicking it in the proverbial balls! Kirk kissing Martia passionately having known her such a short time. They escape, and in the process uncover a plot to assassinate the leaders at the peace conference. Martia, or the alien playing her, is vaporized before our eyes! Scotty shoots an assassin before he can murder the Federation President! The assassin crashes through the window, landing on the ground, and blood oozes from him as they rip away his face, which turns out to be a mask, but let's not pretend a kid will know that right away.
Star Trek First Contact. Borg, bullets and blood. We watch as crewmembers are torn apart, their arms severed, their eyes gouged to allow for cybernetic implants. Their captain, the hero, even shoots one of them instead of tries to rescue them. The other hero, the visionary inventor they all adore, ends up being a drunk, womanizing, profit seeker looking to cash in, not to better humanity. Data and the Borg Queen discuss having sex, including a "was it good for you" moment.
What. Movies. Were. You. Watching?
Man that's a long post that doesn't notice the difference between 'suitable for' and 'for'.
And yeah, many of those things, particularly, you will note, from feature films, which have ratings on them to show suitability, and are often edited before being shown on television, where audience is different.
By and large, with the odd episode only needing a trim for visuals here and there, Trek, has been family viewing.
Here in the UK it had a traditional early evening slot, and never needed the Buffy treatment (kid friendly edit for evening, reshow later with no cuts....Torchwood series 2 tried that model too) and going back...well, pretty much it's entire history, Trek has seen people come to it as children, and has been suitable for younger audiences.
Deep space nine, certainly by about season 4 onward, is a bit of an outlier in those terms.
But then (again in the UK) 8pm Saturdays is still a family viewing slot, even if it slants towards older children and teenagers.
Once upon a time, something Like Game of Thrones, or even Dark Matter would have aimed at that demographic. It is safe to say they do not.
With the exception of 2, and to a slight extent 6 (though the blood was pink, floating, and the film was rated pg) all the TOS films cover that wide range. 2 once edited does (I was surprised to see the full version with a 15 certificate in the 90s. Had no idea it existed.)
The tng films are also all within that gamut, with the exception of first contact, which skews to the older end and got a 12 certificate.
Voyager is so aimed at that wide gamut that it even has child characters. It didn't hold it back much, and shows the leap from characters such as Wesley and Alexander on Tng.
The reboot films? Nero wanders around 'hey, I'm Nero....fwoosh with mah predator spear thing' Khan snaps necks and mows down a room of people with a minigun.
There is a difference between 'suitable for children' and 'a children's show'
It's one Trek should remember, unless we as fans want to suffer from 'an aging population' or are so selfish that we want Trek made exclusively for 'us' rather than as it was always made, for everyone.