"Aren't these ... opposites?"

They are. But I'm not seeing so much of the passion for individualism. I think, as well as good old fashioned political partisanship, the trend towards increasingly toxic identity politics (and the inevitable backlash) has driven those who would usually avoid identitarianism to form their own identitarian group.

It's the age old problem of knowing what you're against but not really knowing what you're for.