If your pastor bad-mouths Janus, leave him a note in the collection on your decision to withhold some of the extra cash in the paycheck. Better yet, withhold the entire amount you typically donate. He doesn't support you having that money to start with, and he obviously supports entities that promote abortion, abortion- socialism-promoting politicians, and stands against your Natural Rights. The latter of which pretty well stands against Church teaching.
When you have them by the wallet, their hearts and minds will follow.
And copy the letter to the Bishop.