I'm tempted to say: what's the point if you've preemptively disregarded it as made up "American propaganda."

But here you go anyway: https://en.wikipedia.org/wiki/Salt_Typhoon

Yes, what is the point if the cites you have are all based on speculation and vague allegations by US officials? Do you actually have credible evidence that a group affiliated with the Chinese government hacked American ISPs? If not, don't bother.