Not technically, because we all speak the same language and are dividing along class and ideological lines rather than ethnic. We are rapidly living in two different countries quite literally. Where I live masking was never strictly enforced and I haven't worn a mask in months. I live in an urban area too.

Since you've brought it up, have you ever heard the term Ulsterisation used similarly before? I just Googled and it apparently has a wildly different definition than I thought. I read a sociology book years ago which defined it as a homogeneous population self-segregating along ideological lines. If that's the case, that would be much more similar to what we're experiencing here. There are liberal neighborhoods in my city that I get uncomfortable being in because of how strident they are about masking and vaccinations. There's also the issue of the higher crime rate and homeless people lining the street because they humor them too much.