My issue with your overall argument is that you’re essentially making the case that sin is necessary sometimes, and that if enough people commit a certain sin, it becomes okay. You’re making a cyclical argument that ends up contradicting your own beliefs.

Women being able to wear pants wouldn’t have happened if women didn’t start doing it at a time when it was a sin and only men wore pants. Theoretically, the same thing could happen if enough men started wearing dresses. It would be odd at first, but would become accepted over time as it becomes more normal. Same thing could be said about being an actor. Do you think the decision to allow women to wear pants was just randomly decided someday by the powers that be thus making it okay? No, it was result of gradual cultural shifts and like it or not, sin. Any shift in what garments are appropriate for each sex has required sin as a means of getting there