That's a weird way to put it. I'm Latina and grew up around mostly other Latinos. Being a Latino man does not make you naturally more aggressive. In general, Latino people are very warm, sensitive people. It's not looked down upon to be expressive, loving, or open. Machismo is definitely an issue, but which culture does not have an issue with male aggression? A frat bro type of dude is scary to anyone, and they come in any race, color, and/or ethnicity. I've met macho Latino guys who made my life hell, and nerdy softboy guys who were very nice to me, and vice versa. It's more about the social culture that they go into rather than the ethnic culture.
Anyways, I think the root issue is when you have a mental illness. Normal people can sense crazy-- the sad truth is that no one wants to date or be friends with a depressed, anxious person who clearly has unmanaged mental problems. It's just stressful and depressing. You've gotta be super rich, super charming, or super gorgeous to have someone put up with that.
I think that relates to how shy girls "survive the world." Girls who are shy because of mental illness (like me) do not live to the fullest, especially if they have nothing extraordinary to offer. But even the gorgeous sad girls will struggle with people who shamelessly take advantage of them for their problems. On the other hand, girls who are normal and just have a sensitive and shy personality, probably don't hang around this site and live very normal, happy lives. It's the same with men, many sensitive and ugly men are out there living their best lives, dating, partying, having fun, etc. They are also not the type to be hanging around here.
Yeah there's benefits to being outgoing and beautiful and stuff. But if you really look at it, the real benefit is in being sane and normal. All the other stuff just adds to the easiness.