Comment by sytelus

There was a very detailed article that used data collected in Tinder. It showed something like 80% of women fought for 20% of top men and other way around. This basically meant that large number of men are being left out cold in dating scene. This pattern is across all online dating causing steep rise in men who are alone without partners in their 30s. However, there will likely no impact on birth rates significantly because women ultimately bear children for multiple highly desirable men but from small pool (either through multiple marriages or staying single). This is not very different from times before agriculture as DNA analysis shows significant portion of men didn't had offspring as more powerful men had access to larger than their fair share of women. The online dating has made the game as fierce again but this time voluntarily from both genders.