I think some people don't get the distinction between a fact and an interpretation of a fact, and consequently fall into seeing some facts which confirm their prejudice and take it for proof.
Turn over any rock and skim any ofo the anti-Cahotlic posts and the constants are ignorance (either willful or inadvertent), a misconstruction of the facts, and a contempt for careful and deliberate reasoning.
I apologize for the carelessly hostile tone of the post to which this is a response. God still has some work to do in me yet, I suppose.