Political correctness isn't values, it's etiquette. And yeah, if a kid isn't learning this at home, thanks to parents who refuse to get behind where society is going, then no, it's not good enough. :shrug: Not good enough for the kid, who carries that garbage with them into the world, where it is not welcome, and suffers as a result. :shrug:
There's simply no excuse anymore. If you go into the corporate, white collar world, and you talk like an alt-right idiot, then you will not make it. Boys clubs are evaporating, sensitivity training is everywhere, and no business wants to mess around with lawsuits, so their codes of conduct are getting more and more strict about PC. You want your kid to compete? Teach them not to be an asshole. Sadly that is beyond some parents...being partisan / ugly is more important, apparently.
I understand this is frustrating, and confusing, but let me assure you, the world does not GAF. It has changed...keep up, or get left behind. This absolutely should be mandatory learning. You'd be doing your kids a disservice by doing any less.