Who cares. Do you care about the political opinions of your plumber? No, you just care that the shit goes down when you flush.
Normally I don't care. But with MAGA, it's different: if I found out he's a MAGAt, I'll call someone else. I don't give my business to fascists, fascist sympathizers or morons who are too dumb not to vote fascist. I can't stand fascists and I can't stand those who enable them.
Having said that, Eastwood isn't MAGA. He's just a slightly nauseating person. That won't prevent me from enjoying the movies he played in.