How come some conservatives get upset when you mock Trump?

Trump himself has no problem mocking people from handicap, to his political rivals.
Yet gets upset when people do it to him.
His loyal base gets all upset when people mock him as well.
I saw non stop Obama bashing during his term and now these people can’t seem to take it, why?
It’s not like Trump doesn’t ask for it with his horrible misspelled tweets, his feel good about himself rallies, his total lack of any kind of diplomacy.