"The founder of Catholicism is Jesus Christ, and to dismiss Catholicism is to call Jesus Christ into question, even if you don't know that you're doing that."
Your assertion is false from the core. Jesus did not found the Catholic Church. Augistine did some three hundred years after Jesus lived and appointed himself as Pope.
Jesus church was founded on Penticost AD30 by the men He had chosen to be His Apostles. Your devotion to the teachings of men is your privilege but don't try to impose that teachings on people who have a personal knowledge of the Bible as well as history.