small dick syndrome
What many men experience, causing many men to be and act in toxic and aggressive manners.

Everyone knows that they cannot change parts of their body in any meaningful way, so men born with small penises will try to shape the world into something that makes them feel bigger.

Many men with Small Dick Syndrome develop hatred for women, hatred for more successful men, become obsessed with money, join the military or the police force, etc.
That's my cousin Mike. He does MMA, is a former Marine, a cop, is racist, always on edge, angry and violent. He's never had a woman genuinely want him, and he can't get over his first time with a girl, when she laughed at his penis and walked out.

Oh, so he's just got small dick syndrome.