What I'm about to say might get me shunned, but someone has to take a stand.
Negronis are disgusting. Campari is a vile and satanic liqueur. And no it's not "Oh, you haven't had a good one." My doppelganger Stanley Tucci, who is known to make a fantastic Negroni, could make me one and I'd turn up my nose at it. Yuckola.
@LiberalLibrarian Well, have you tried swapping out the gin and using bourbon? It's called a Boulevardier and quite tasty. But then again, if it is Campari you dislike, it won't help.