Many people living in the developed Western world want sex.

Straight men want sex more than straight women.

Sex is no longer as much of a transactional occurrence as it was in the past; it's more something that people do for fun, especially if they are <30.

Men rate women's attractiveness on a bell curve, while women rate men's attractiveness on a right-shifted curve such that ~79% of men are seen as below-average.

It is now possible through technology for a top-tier man to have sex with many women. Remember, sex is much less tangibly transactional than it has been in the past.

So a lot of men will miss out on dating and sex while they're young, especially if they have certain innate attributes that other men do not have. Money may no longer be as significant of a factor as, again, sex is much less tangibly transactional than it has been in the past.

As you see, the problem is not as complicated as "pillers" tend to make it out to be, but the solution is not as readily apparent as "pillers" tend to make it out to be.

If technology continues to advance at the exponential rate that it has been and the standard of living continues to rise overall (I'm aware of the unprecedented income and wealth discrepancies in the West), there is no clear solution as far as I can tell besides legalizing prostitution. This is problematic as the field of prostitution will likely have a major gender imbalance (due to the fact that, again, straight men want sex more than straight women), but it is arguably better than accepting society's nebulous and often-contradictory statements about the ability to have sex.

Edit: My post has nothing to do with loneliness or the nature of emotional intimacy, just sex.