Congratulations! You managed to dig up 3 assholes out of how many tens of millions of anti-Trump ordinary Americans...?
You might also have noticed that the Bennie Thompson staff member was fired by the Democratic leader for making the remark. I seriously doubt that would have been done by a MAGA pol if the situation had been reversed, and someone had shot Biden. If it had been an aide to MTG or Matt Gaetz, he would have been promoted with a (taxpayer-paid) raise.
BTW: The English professor was just mildly paraphrasing Ralph Waldo Emerson, who wrote that "if one aims at the king, he had best not miss".