Earlier quoted context omitted.
The OP appears to be mostly talking about porn, but your points seem to be mostly addressing prostitution. Prostitution has long considered an disreputable and undesirable activity, and it along with other types of sex work are often tightly coupled with involuntary exploitation. A lot of the stuff that you're criticizing derives from attempts to continue to legally discourage prostitution while preventing the legal…
Isn’t prostitution essentially porn without the cameras? Why ostracize legal prostitution? If porn is allowed, prostitution should be too. Yes, there are issues of exploitation and licensing. They are at both places - maybe less for porn because it’s not as much in the shadows. Bring sex work out of the shadows. Just normalize it.
Prostituion is much harder to monitor, especially when the buyer also has incentive to pretend that the transaction didn't take place.
There are, perhaps, solutions that could be developed to deal the problem but if you are the lawmaker why would you go out of your way to make your job harder?