Your defense/justification of political correctness is what’s scary. People no longer discuss and learn, they seek and destroy as some means of righteousness.
If by 'PC' you mean efforts to make society tolerant, all-inclusive and egalitarian, have no idea why that scares you. It's people learning, and the societies that they constitute evolving with that new knowledge, that fosters what you cavalierly dismiss as 'righteousness'. But if you all you see in the struggle to overcome racism, sexism, misogyny, homophobia, etc. is destruction, its because that's what you want to see. There's actually a great deal more to it, but as you're so deep in denial, not much point. Cheers.