When something hits a whole group of people by demographics, I find it very unlikely to be a responsibility for the single individual.
Let me explain myself, if a guy commits suicide he may had mental problems but if 90% of guys that age in a particular location commit suicides well, the issue is kinda different.
I believe guys in their 20s are alienated for many reasons.
1)Their upbringing was messed up from the beginnin on disfunctional families and a disfunctional school system that not only failed to provide them tools and knowledge but most of the times worked against their own nature and turned them neurotics.
2)The current job market is basically legalized serfdom where a minority of boomers basically controls the economy and dictates the rule,,,which of course do not benefit nor treat fairly younger guys.
3)Getting laid which is probably among the biggest rewards for that age group is not connected at all to hard work and compliance to rules.
Hot guys and high status guys gets 90% of the women on the spot while the majority of guys are openly ignored if not mistreated.
Needless to say that your status doesnt come from studying in the morning and flipping burgers in the afternoon like most guys that age are supposed to do according to right thinkers.
Do you wanna fix the problem?
Give them back decent male role models, teach them useful real world skills and make housing affordable to young workers again.