Right.
Lots of folks think they're right. Some of them are (were) among history's most hideously evil. Neither intensity of conviction nor numerical commonness of belief have any real bearing on correctness.
he's so certain of his position that he feels he has the right to impose it on the rest of us.
That problem is not restricted to explicitly religious fanatics.
BTW, would you care to share a few words on how you came to the Church? I always find that interesting.
Would love to, but it would take more than a few words, and I don't want to further highjack this thread than I already have.