Mr Hayden might actually be justifying his own predictions by referring to these twentysomethings "who haven't talked to the opposite sex in five or six years.", as sexual frustration can be a powerful motivator when directed into other pursuits. Isaac Newton, for example, developed calculus during his period of celibacy which his contemporaries described as sending him a bit bonkers as well.
Nerds not getting laid are to be feared indeed, rather than ridiculed.
Besides, some of us just find the opposite sex unnecessary and annoying.