I have no party affiliation since Jan 2021 but that doesn’t stop them from pretending I’m still a republican and constantly soliciting donation.
I am in a similar situation. I will NOT donate a single penny to the party, only to individual candidates where I am first assured that the RNC gets nothing. I even have the Libertarian porcupine on the back window of my SUV. (which a co-worker thought was a hedgehog).