Saw this thread, and it really hit a chord with me, as these similar fears tend to constantly weigh on me (for various reasons- being trans, ethnic Chinese, commie, etc).
I think we all (leftists, but also just most minorities) know, shit is bad and will get worse, it's just a question of how bad it will get. People mention it offhand without usually going further into the details, and similarly in other spaces - non-leftist ones as well, for instance Asian diasporic and LGBT spaces in my experience, these fears come up, but ultimately we keep the bulk of our concerns to ourselves. What are our expectations here, for the west? Not just for the US, but the Anglosphere and Europe?
This is- upon thinking and reading it over properly once or twice, actually not so unimaginable. A fair bit of it already has happened, some of it is happening, and others could easily happen again and are well on track to doing so (and they're pretty honest about their intentions for the straits of Malacca as someone whose family is from the region- and unofficial invasions/regime change/etc of Mexico is absolutely possible and perhaps more likely as the contradictions of empire increase).
Of course, in the midst of all the genocides (domestic and being waged abroad), slavery, sterilization, starvation, and warmongering they'll also continue touting themselves as the "beacons of democracy," the paragons of "freedom" and "human rights." Just as they are now while being guilty of arguably around half of what you described, just as they have for their almost-250 years of settler barbarism... and of course it honestly won't matter (though we all know it wouldn't) which "party" and figureheads are running the show.