How much of that is real and how much of it is in young people's heads?
I think people have been dealing with rejection forever. Everyone has to start out awkward, and most people get over it.
Maybe that is one place where technology hurts us. Maybe 30 years ago, a young person would have tried and struck out, and then they would have gotten over it and tried again. Whereas maybe today people try and fail, and then they can retreat into video games and online communities, which offer a superficial sense of success or belonging without the same risk of direct rejection.