How about focusing on root cause instead of denying it?
OK. The root cause, as I see it, is going to bars / clubs / whatever and "hooking up" with total strangers.
The gender bender would have no one to trick without someone looking for sex with strangers. I think it is you denying the root cause.
But, let's face it, we won't find agreement on this topic. You have earnestly defended your point, as I have done. You think I'm wrong, and I think you're wrong.
As I tell my wife of 17 years on a regular basis, when discussing our single friends, God I'm glad I'm not in that game anymore. I certainly exercised crappy judgement on more than one occasion (lost count after using all fingers and toes), but I tried to never hold anyone but myself responsible for my actions.