It's common knowledge in psychology that parents overprotecting their children and shielding them from uncomfortable challenges and situations ends up creating adults that are insecure in their ability to deal with the world, and eventually anxiety and depression develops. That's basically what started happening with millennials, and got ramped up with gen Z. Gen Z also grew up with social media and mob mentality - always walking on eggshells for every single thing they say. They also got coddled in spaces outside the home, e.g. "safe spaces" in university. Culturally, society has also devolved into many people believing that their own out-of-control emotions aren't their responsibility but that other people are at fault for 'triggering' them. Bar some gross misconduct on the other person's part, your emotions are always your own responsibility. Even ancient Greeks had understood this. A lot of factors came together to create a very mentally unstable generation in gen Z.
You bringing up the silent generation is deflection. They had to go through a war; gen Z didn't. If gen Z had to go to war, they would be absolutely shattered mentally. They're barely holding on just living totally normal and safe lives. Look at any kind of objective measure of mental illness and millennials are worse off than gen X, and gen Z is worse off than millennials. Parents and society in general are failing at raising these kids properly. Culturally, the US has decayed.