Do you really think that if you presented the truth to a MAGA follower that believes climate change is a communist scam that they will just see reason and support your position just because you presented them with the facts?
If, despite best attempts for me to communicate facts to them within our common language, they still can not recognize basic truth or fact from their subjective truth? I don't really see that a problem for the speaker, but a problem for the listener.
That's no way that the opposite expectation can scale as a society. Otherwise we would all need to validate everyone else's words constantly with primary source documents. There must be some level of trust in order to communicate efficiently, surely.