There are assholes on both sides. So we can either fixate on this tiny percentage of assholes and paint everyone on the other side as such. Or we can accept that most people on both sides of the political spectrum are decent human beings, and actually try to reach across the aisle and engage with them.
I’ll even wager that you yourself have friends you didn’t realize are Trump supporters. If you discover one, don’t shame them. Ask them, sincerely and openly, how they came to their decision. Because the ones who are least vocal about their support are probably the ones with the most compelling reasons for actually supporting him. These are the people who get what an asshole he is, yet believe they still need to vote for him. These are the people you should be engaging.
That’s how you change minds, you know. By connecting to them. Not by pounding them into submission.