Culture has been turned into politics, the Democrats just have a much longer history of doing so than Republicans and a much stronger emphasis on it, especially in the last 15-20 years. It'd be appropriate to say that there are a large number of Democrat politicians and bureaucrats who owe their entire existence to social/cultural issues whereas you'd be lucky to find half a dozen at the most Republicans who'd fit the same criteria. They're far more reactive to social issues whereas Democrats are proactive.
I digress in a certain way because talking about the Establishment is essentially talking about neither wing, right or left. The difference in grassroots right and left is small but nuanced and of course highly based on cultural values and traditions.
Yes, yes it is.
Protip: Every single ethnicity in the world has been enslaved at one point or another, moreover some of them more or less still are in this modern age.
That you think the consideration comes down to whether or not people can call each other names is pretty amusing. That's not even in the appendix of concerns, let alone the main table of contents. That you also are acting as though supposed oppressed people don't actively engage in the very same shit they accuse others of doing to them and also hold as a matter of chronic victimization is a joke. The scenarios don't have to be identical for this to be valid, each are valid in their own way and through their own circumstances.
Look at you, so concerned about those internet forum warriors, so easily dismissing anything but that as though forum trolls and gladiators make up the entirety of human interaction and experience. You should get out more, experience more of that diversity everyone loves to talk about. You'll learn there are giant buckets of shit in every race, and some moreso than others depending on where you live.
Even though it wasn't addressed at me I'll answer your last bit. The PC Crowd definitely exists, we see them on college campuses and other halls of education, in media whether legacy or new era internet media, we see them when we go just about everywhere. You can choose to deny that all you like, doesn't make it not so.