Moreover, it doesn't pass the sniff test. It's entirely possible that rich men are lonely too, but I have to figure that groups like incels etc are overrepresented by poorer men.
It's not a really strong data set (the survey is all of people born between 1980-1984, surveyed in 2002, and they threw out AAPI responses because there were only a few of them) but it suggests that male loneliness might be an artifact of a culture common among the American economic elite.