Well, as stated earlier on this same subject, the old “Everybody gets a trophy” ain’t workin’ out so awesome. Kids don’t learn how to deal with loss or rejection.
It is worse than that. The entire underpinning of leftist identity group politics is that groups of people are victims, and their difficulties come from the oppression of others. And the others are typically white males.
So when fewer women choose some line of work it is the result of discrimination by men. And if police stop some other group of people more frequently, it must be because of bias or racism. And if the baker disapproves of your lifestyle, and won't bake you a cake then it is their problem and they get punished, and people with similar opinions are characterized as evil.
That flawed logic gets taught to everyone, including young men who may themselves be not as successful as they want to be in life. While their group is not allowed to be "victims" in the leftist scheme, the young men do adopt the leftist pattern of thinking. So when they don't get what they want, it must be somebody else's fault, somebody that is discriminating against them. They, and everyone else who accepts the victimized group logic from the left looks outward to blame others for their failure, instead of either working harder to improve themselves, or just accepting that the world is an unfair place.
Tragically, when the most unbalanced of those young men lash out at their "oppressors" they are just acting out the logic of the left. Just like the baker who didn't want to bake a cake for a particular customer, the poor girl in Texas didn't want to socialize with a particular young man. There is obviously no justification for violence in any such situation, and the blame must be on the killer, not his victims, but the leftists teaching young people that they are all part of victimized groups, except of course for young heterosexual white men, should not be surprised when that group also assumes their failures in life result from other groups or individuals acting against them, and preventing them from getting what they think they are entitled to.
The ideas of the left are uniformly bad for society, and sadly I think we are seeing yet another example of that.