For this last election 60.2% of elegible voters actually voted. Of those 50.2% voted for Trump - so 30.2% of elegible voters elected him. That's far from 'every American', even far from 'most Americans'. Many of us absolutely despise him (e.g. me). Frankly, I'm appalled that even 30% of the people in this country thought that he could be a good president.
Part of this is from the Democrats doing a poor job explaining all the good things they were doing - many of which brought a lot of federal $$ to 'red' states. Trump has slashed all that, which I have to admit is giving me a bit of schadenfreude. Part of it is from Biden not deciding to be a one term president, announcing he would not run for reelection early so the Dems could use their usual process to select the best candidate. We ended up with Kamala Harris, who I think would have been great but this country has an issue electing colored people, and an issue with electing women - and being VP really handicapped her as she couldn't say "here's what I'll do different from Joe Biden" or "here's what Joe's doing wrong". On top of that, some of Biden's staff tried to 'keep her in her place', gave her responsibility for our Southern Border (a no-win situation).
I'd like to think that she'd have done a better job supporting Ukraine than Biden (Mr just-barely-enough and too late to win). And also put her foot down with the right-wing Israelis. But none of that was to be.
I live in a 'blue' state in New England. I see a lot of blue and yellow flags. People care what happens in Ukraine, but we're somewhat distracted with very bad things going on at home.
Sorry to have gone on so long, but just know that Americans are far from being solidly behind the orange guy.