It is true that most average and slightly below average looking men can get laid with different women with regular frequency.

But the possibility is no comfort for average men.

"Just develop social skills and confidence": it's not easy to develop the social skills, confidence and resourcefulness to regularly get casual sex. The bar is high. It's hard and takes years of dedication.

In order for the average man (who can't rely on looks) to get laid regularly, he has to spend 1000s of hours learning how to pick up women and to develop abnormally high confidence and social skills while risking destroying his social status in today's online outrage media age.

He needs abnormally high dedication and grit to withstand the 1000s of hours of rejection and embarrassment to get the same sex life as a below average woman. This process isn't enjoyable for most men. Dating isn't enjoyable for average men. It's not enough to be yourself. The man must always be entertaining the woman and has to jump through several hoops. It's a hazing. It's not something that most people (men or women) can reasonably accomplish.

In the modern age, the incentives have shifted such that the cost of getting casual sex isn't worth it for many average men.

This is what people mean when they say looks is everything for men. To actually enjoy casual dating and not have to go through that hazing, a man has to have 8+/10 looks in order to get enough immediate attraction and matches in online dating to avoid this problem. Otherwise, he will have to be a dancing monkey on dates and go through an unpleasant, depressing slog and hazing to get casual sex.