[Volrath89]

People that are actually successful using Tinder are definitely NOT looking for marriage/kids. It's a hook-up app.

You are right in your observation that women reject droves of men who aren't in the top 20%, not only in Tinder but in real life too. But OP is also right in his observation. The few males that are at the top have so many choices of women that staying with just one doesn't make too much rational sense.

In the end, we have 80% of males not being able to catch the interest of women, and the remainder 20% that do get female attention are not interested in long term relationships.

My conclusion: Low birth rates are being driven by the 20% of men as a result of the sexual preferences of 95% of women.