You are exactly right on that.
My sister has a tinge of calvinism and she is driving my nieces and nephews away from Jesus constantly - I have to do damage control from whatever nutty thing she says.
It’s this crazed legalistic theology - much as the pharisees believed - that drives people away from what is good. Just as Camping with his legalism and crazed harsh interpretations drives people away. It just isn’t christianity at all.