There has to be some kind of right thing to do in all this. Yelling begets yelling. Incivility begets incivility. Revenge causes the other to return revenge for revenge. Hate begets hate. Etc. Yes nobody is above the law, but there are times that a bit of magnanimous can go a long way to cool all the yelling, incivility, revenge, hate etc.
So I don't know what the answer is. If there were crimes committed that cannot be overlooked, I would suspect a competent DOJ/FBI would look at that if it was in their jurisdiction. But that is a very different thing than Trump going after or exacting revenge on his political opponents, even those who did every unethical thing in the book to take him down.