Keep in mind that many so-called "Americans" you see online are thousands of miles from the US, and are paid or otherwise encouraged to pretend otherwise.
A lot of them are just doing this for free, and got got too by the insane propaganda apparatus in service of the GOP, that converted so many Americans into defending straight up murder and pedophilia.
It's known to be true. Witness what happened when Xitter turned on a country-of-origin indication briefly, realized what it was saying about their audience, and then turned it back off in a hurry.
It really is sadism, the punitive urge. I'm noticing relatives of mine hesitate to condemn what's happening, and I know that same hesitation from their righteous anger in exacting authoritarian attitudes about other more mundane things. The difference here now is that we're talking about an authoritarian takeover of the government.