I share opinion with thrw_a_way1221221. Generally speaking, dating apps are not conceived for long-term relationships (or, at least, they are not used for such purposes in practice), but rather for casual sex. Of course there may be exceptions, but definitely they are not the general rule. Therefore, pragmatically speaking, looks are the only important criterion for selection, since for a one-night affair this is the only factor that actually matters.
Unfortunately, this is how it works for the males of almost any mammal species: only the biologically fittest ones are entitled to reproduce, and thus have access to sex. And now this is again a reality in developed human societies as from 60's sexual revolution, where enforced monogamy was replaced by sexual debauchery, namely, a dominance of the natural selection. And, indeed, this is especially brutal for men, as the OP stated, as this implies that Pareto's law (also known as the 80/20 rule) takes effect and only few males mate with most females.
But this is not actually anything done on purpose nor there is no evil entity oppressing men. This is how nature works, plain and simple. And yes, nature laws suck, as life in general.
