I've honestly never considered him really good or bad.
Personally, my top three Presidents are Grant, Washington, and Lincoln. My top three most despised are Johnson, Wilson, and FDR (though FDR had a lot of notable successes that I can't and won't deny).
Trump seems bad to a lot of people now, but as time goes by and tensions subside people will realize he was like most Presidents in that his term was largely ineffectual in the long run. He did some good, did some bad, and we'll be just fine moving forward. Same with the folks who are panicking with Biden in charge; he'll do some good, do some bad, and we'll be just fine afterwards. So I am not trying to be rude when I ask why you think he's worse than all past Presidents when some have seriously damaged the nation for long stretches of time and far more than Trump has ever done.