i didn't hate him when he wasn't the president, because he wasn't doing any direct damage to me, he was just hurting people stupid enough to do business with him. now he's hurting people, not only all over the country, but all over the world. good people, who weren't stupid enough to do business with him, and don't deserve it.
being a greedy, thoughtless, bigoted piece of shit is annoying, but ignorable, in a private citizen. you can refuse to do business with them, you can advise other people not to do business with them, you can even boycott their businesses.
when that same greedy thoughtless bigoted piece of shit becomes a public official, it's beyond annoying, and there's no way you can ignore it.