I agree that they exist, but I don't personally know anyone like that. I'm talking about the average person who says "I'm catholic", "I'm jewish" or "I'm hindu" etc (and are the types of people who usually pitch to VCs). They haven't really questioned their beliefs.
I have no idea about the average person, or how you would even measure or quantify what it means to "actually" believe something you claim to believe. I suppose you could say the same thing about any belief system, even empiricism or scientific rationalism. How do you prove that you "actually" believe in anything?
I suppose you would "measure" how they act rather than what they say. If someone says I'm willing to "die for Allah" and then actually becomes a suicide bomber, that's pretty solid evidence.
