There is a future for "the good ones"
Bastion is such a weird little outlier among X-men characters. He has a damn-near-incomprehensible, mystical-technological-timetravelling nonsense backstory that requires you to read like 30 other comics to understand - exactly the kind of convoluted 1990s comics bullshit that the MCU adaptations have tried to steer clear of for two decades now. I didn't actually expect them to actually adapt him for this season. But ultimately I kind of love how they play him in the series.
He's streamlined - a boring, soft-spoken little middle-manager type who plans out a near-perfect encirclement of mutancy in preparation for a purge.
Here's a bigot who seems both rational and capable of compromise. In stark contrast with shrieking racists like Creed and Gyrich, or conflicted oopsie-I-made-a-genocide-machine concerned citizens like Trask, Bastion employs genocide as a tool rather than an end goal. "If we've accepted that the presence of mutants is inevitable, how much more ground are we willing to cede?" he asks. And then he answers "As little as possible."
Not the extermination of a whole race of people. Simply its management - setting up a system where they can be made into non-threatening, productive members of society. It's enhancing rather than upsetting the status-quo, assuaging the existential fears of polite humans who just have some concerns, and backing up that system with as much genocidal violence as is required to make it work. Very clean, very neat, very Schneizel-pilled.
If this sounds familiar it's because it's the same system of thinking that people employ to declare how colonialism is over, while benefitting from the extraction of cheap resources out of former colonized nations; we haven't ended colonialism, we've merely streamlined it and made it more efficient. "It's stupid to waste resources that we can use."
Bastion is the endpoint of genocidal centrism. A little ethnic cleansing is required to make the machine work, and the machine - making it more streamlined, more efficient - is the best we can possibly hope for, so don't raise your voice at me!
Cable describing the future world that Bastion built as a "utopia" is actually a bit of an understated revelation here. It's exactly the kind of thing a centrist with a pang of guilty conscience might use as an excuse to close their eyes to the violence required to build this system. Much like how an abolitionist in the past, being witness to the horrors of slavery and colonial abuse, might view the participation of colonized or enslaved minorities in global capitalism as his end goal.
X-Men '97 can't escape the fact that it's produced under a Disney near-monopoly of modern media. This is the same company that gave us Karli true-leftism-is-killing-civilians Morgenthau and other childish takes on modern political extremes. In that context, Bastion is an improvement.
He might also be a jab from the showrunners at the Disney company itself (give them as little as possible, as late as possible, and they'll be grateful for it; they'll call it a utopia) but I can't prove that.