I know your comment is in good faith because the core of what you're saying is correct, and I'm certainly not accusing you of anything... Instead of 'part of the culture' though I would phrase it as 'correlated with the culture' to avoid accidentally giving supremacists ammunition.

The point being, you have to rise above your circumstances. Just because everyone you grew up with is doing something gravely immoral doesn't make it correct. No culture should exude pathological behavior as a trait.