The difference is that places like China have very little influence over "us". We trade, that's it. Whereas the US, through Hollywood, Nato, SV and general industry, has humongous cultural and economic influence. When my Prime Minister goes hand-in-hand with your President and licks his gold-plated boots, we feel it. When you "help" our neighbors fall into civil war and we get millions of refugees, we feel it. And so on and so forth. This why we feel a duty to resist and condemn trends in American politics that we see as destructive: because you are our Rome and we can't afford you to take your imperial duties this lightly.