You're not going to find any actual supporters to respond to this, and if you did they'd be down voted. Let me steel man at least.
Allegations connected to the Epstein documents: Are allegations. He's the president, a lot of people hate him, anything negative spreads like wildfire and a fact check that finds evidence someone is not guilty of something has no reason to spread. If there is proof that passes legal scrutiny, in the hands of successive governments across both parties, why has nobody filed charges? The only answer is either a massive conspiracy to protect Donald Trump that needs everyone you've ever heard of, or there is not enough evidence to charge anything.
He was friends with Epstein. He is pictured with Epstein. He went on Epstein's plane. These are the things we have seen proof of, and none of those things are crimes.
And lastly, a lot of Trump supporters don't necessarily like him as a person. They see the naked self interest and boorish behavior as real, but not disqualifying. He can be self interested if his self interest is aligned with yours. If your choice is a dick who will fix health care, send everyone $2000 checks but also fix inflation, take over Greenland and Canada for no cost in military or taxes, and take down the communists in China and Venezuela to bring manufacturing jobs to the US and make gas cheaper, or a nice lady who will brick the economy, you vote for the dick if you want those things. The only time it would be a problem is if you elect the dick and he accomplishes none of that.