People don't realize you just have to ignore some personality quirks sometimes.
Sometimes you just have to say, "Well that is just Don. That is just how Don is."
These Woke Puritans believe that you must cancel someone you disagree with or they slightly annoy you and utterly destroy them.
I'll give you a serious answer. It wasn't just Trump's personality quirks. The base loves the red meat because libs are pwned.
Reality though is Trump had good ideas without any real organization and an inability to control the factions inside the whitehouse. The executive branch is one of the largest institutions on the planet and it's full of various factions backing everything from woke, national security, to anti china, pro china, pro business, etc etc etc. It's run by bureaucrats, revolving door staff members, idealists, group think, and so on. The President is the only elected official and as a result that position is a check on the institutions that make up the presidency.
Some presidents are bad because they side with a faction, other presidents are bad because they can't control the various factions (think George W and the Neocons). Good Presidents are the one that can control the various factions and push them in such a way to enforce a President's own agenda that he got elected on.
Biden sucks for the very same reason Trump wasn't really all that great, neither could or can tame the institutions. Biden can't do it because he's Biden for one. Add to that his mental faculties aren't all there. Trump couldn't do it because he could not do it because he had no organization and was the most petty president we've ever had.