I don’t understand why so many folks aren’t worried about another superpower replacing the US’s slowly waning stranglehold

Can’t speak for others, but personally I simply find them both worrying. The Chinese and US states are both foreign powers that wish to track everything I do and use it to control me in the future.

Look at all the fucked up shit the US has done around the world, and that’s with a quasi-democratic government that at least has a modicum of domestic and international accountability

Which US-led, US-backed agencies are you referring to as delivering accountability for the US? The ones they have veto power in too?

Not trying to “both are equally bad”. China’s output of political violence is ostensibly worse, but you seem to be dismissing the legitimate concern that the source for this is the US regime, whose political interest is for us to point fingers at China as they continue working behind our backs.

We know to be cautious of China, yet any time someone brings up “we should be cautious of the US too”, the response is “China’s worse”, deflecting from the real threat that the US presents globally.

Preferably, I’d like to see all these superpowers overthrown, the states broken up, and a union a la the EU to form with more global pursuits, or the EU itself to expand beyond European borders, while continuing to be genuinely voluntary while also being both politically and economically beneficial for all member-states.