Read generously, OP’s point can be taken to refer to relationships generally, i.e. social skills. A lack of engagement with dating in and of itself doesn’t point to someone being sick or deficient, it could indicate any number of things. I don’t think there’s anything implied about judging individuals here.

A societal trend of young people having fewer healthy interpersonal relationships at all is troubling. We’re a social species living in a world that requires a certain amount of cooperation both for societal function and individual wellbeing.

Social isolation is a killer, both in terms of its effects on the person isolated and to society at large via the actions of (a statistically higher proportion of) those who are socially isolated.

A call for ameliorative measures against such a trend is not a personal attack on anyone.