That kind of attribution is wrong-headed even if digital technology has exacerbated it, but the decline in socialization among young men predates the internet reaching into everyday life. The decline starts by the 1950s. If there's a technology that's responsible, it's the suburb, which isolated individuals into nuclear families, couples, or themselves alone. The increased distance between individuals, represented easily by population density statistics, obviously created the material basis for social estrangement and isolation. That, combined with the technology of the car, which isolates the individual even further into a cell with antagonistic relations to other cells on the highways, did a number on the very possibility of socialization in our everyday lives. Even at work, the tendency of capitalists to reduce the number of people on the job to a minimum has done damage to the potential of workers to socialize on the job.

Plenty of young men have false consciousness about the causes of their isolation or estrangement from society, but they are a real problem (and it doesn't just afflict young men). When the average young person is not contributing to society in a way that makes them feel like a part of it, when the society their labor reproduces also reproduces their isolation and estrangement, what else can you expect but the rise of anti-social ideology corresponding to the anti-social material conditions?