I am a former Baptist pastor who returned to my Catholic roots three years ago. To answer your question, the bottom line issue is authority. Who decides doctrine? How to worship? What is and what is not prayer? We can accept the legacy of our ancestors, or we can try to figure it out ourselves. Ministers, unlike lay people, tend to read more, pray more, and seek more. Truth is just around the corner, the problem is, it’s scary. It’s out of the ‘comfort zone’. Even many Catholics I know have no desire to move beyond the borders of their own comfort zone, and as a result become nominal.
For many anti-Catholics, it’s comfortable for them to believe the standard line, when they meet someone that does not fit that pigeon-holed sterotype, they rationalize it and deny it. That’s the only way they can emotionally deal with it.
Tell you one recent instance.
I was with several other guys in a van on our way to a business seminar in another city. One fellow, a Baptist deacon, asked me (since I am new to the business) what I did before. In retrospect I probably gave TMI, but I said I have been fortunate to have more than one career. Journalism, and for a time, a Protestant minister. His eyes lit up and he held out his hand and said “AMEN BROTHER”! Then he asked me why I am no longer pastoring. I said “I missed my Catholic roots”.
The temperature in the van dropped. He said very little to me in the course of the trip.
For some, as long as you fit into a stereotype that makes them comfortable, they can handle it. When they encounter one that doesn’t, they simply don’t know how to deal with it.
What a sad, small world some people live in.