Because some of them mentally never left high school. So they pick 'insults" that were "funny" and made them "cool", back when they peaked, and those appeal to the rest of the faux-news followers who did the same.
Yeah it was a rhetorical question. I wonder if anyone has ever attempted to point out to them that the “other side” doesn’t use these kinds of nicknames?
I will admit I found "Tampon Tim" funny, but that was because of the irony in how it was meant to make fun of him but instead it helped spread the word about his history of progressive policies.