In some ways, yes, certain factions within the US government have been untrustworthy. However, I think people do not understand that China is still on a completely different level. There’s a reason that the US is broadly trusted by its allies (or was, largely, up until the recent decade of overt campaign of internal sabotage).
To compare the US and China is like comparing Kent State to Tienanmen Square. Were they both violations of fundamental human liberty? Yes. Are they at all comparable as reflections of the viability of each respective state’s potential to sustain human liberty? No.
The US is in a conflict with itself, between far-right, corporate factions and those groups that actually defend some semblance of democratic liberty. This fact is the proof of the difference, that some meaningful element of democracy does exist in the US. The US has the ability to course correct. In China rule has been consolidated under a single man, unchallenged now, who has created hundreds of prison camps and a surveillance state unmatched even by the US. He ran literal execution vans in his run up to power.
Convincing people that the crimes committed by China against its own people and those they’ve colonized are normal is a way of lessening the seriousness with which those crimes are regarded. You have to ask yourself if that’s really the goal you want to be serving. You’re not required to sing the praises of the US, but acknowledging the meaningful degree of difference is critical to preventing the world sliding further into an authoritarian paradigm.