Somewhat inadvisedly (mea culpa, the hour was late), I used the term 'cheap whore' in an attempt to indicate the difference between working women who earn their living (and in many cases pay taxes/nat. insurance) from providing sexual services to men and women, and those who can be found selling their bodies on the streets for low cost primarily to feed their drug habits.
Similarly, many strippers who work clubs and other venues are trained dancers and members of Equity - I know several who fall into this category and find it objectionable when their chosen profession is demeaned by association with prostitution - to some extent, we all prostitute ourselves but that's another debate entirely.
I hear what you're saying LancsDad but I would venture to suggest that although no money changed hands after punters had paid the entrance fee to the events you attended, the 'strippers' in question would have been paid a sum commeasureate with the 'extra' services they were expected to provide over and above removing their clothes.
In any event, anyone who is offered sexual services as part of a private or package deal does not have to accept and it would, therefore, seem that the OP's husband has a problem with the words 'No, thank you' - athough he doesn't seem to have any issue with saying 'not tonight, babe' to his wife.
sternface has touched on the subject of the madonna/whore syndrome which conflicts some males; many rapists/murderers are similarly conflicted - some are currently detained in Broadmoor and other secure establishments.
The OP's husband may benefit from counselling/therapy, but there is no guarantee that he can easily be dissauded from indulging himself in porn and other aspects of the sex industry.
I feel for the OP in this situation. Sadly, only she can decide whether her sham of a marriage is worth continuing.