I know there are guys who:
1. are envious of the Taliban,
2. are guys who only want a virgin bride, and
3.men who are terribly insecure about his sexuality
... for other men I haven't actually heard any specific reason other than claiming most exotic dancers are bad people. So? I wouldn't marry "most" women anyway.
Except for those 3 groups of men above, specifically why is there no possible woman who is or was an exotic dancer you could marry? Do you feel the same way about models? Women who wear a string bikini at the beach? Any woman who did a wet T-shirt contest at a bar?
What is the reason REALLY?