Nice try....porn is still a billion zillion dollar industry....it will take a catastrophic event, wiping out the human population before that will ever happen.
5 to 10 years to make uncovering acceptable?.....it will take thousands of years of evolution when women loose their breast will going topless will be acceptable.
And you don't have to be religious to not find it acceptable.
Go find some national geographic magazines from the 60's and 70's if you want to see topless tribal women.