Men only pay for porn because they don't know that they can get all of it for free
This reminds me of that bit by Dave Chapelle during one of his shows, he's like:
"If pussy was a stock, it'd be going wayyyyyy down- because you've flooded the market with it!
'In other news pussy went down 100 points, the NASDAQ rose 10.' "
So yeah... stop watching porn and you'll fix this problem.