It seems salient to ask the follow up question of "Why aren't men getting laid and/or married?" Actually finding the root cause may be much less simple. Your response seems as hand wavy to me as saying "Most of the loneliness epidemic is really an epidemic of people feeling lonely"
Because if the problem was "everyone is feeling a bit lonely", then that's something that points at actual problems, that aren't self-inflicted, and need fixing. If the problem is "The absolute worst men you know no longer can get laid by being the only available option", then whatever, who cares, it's self-inflicted.