So he's trying to make a "backatcha" point about how All Them have complained about how "The Left" have played identity politics and the politics of grievance and now All Them Flag shaggers are doing it and it's hypocritical.
Well no, the whole reason All Them Flag Shaggers are doing it is BECAUSE of the identity politics of the more millitant advocates alienating ppl. The whole reason trump etc al got popular was as a reaction to the activists (be they bipoc, BAME, LGBTQ+ etc)framing everything as a struggle against the hated Majority . Blocked and Reported managed to find examples on an almost weekly basis in the US
that's why old school left wing stuff was about building mass consensus around broader things like class rather than a myriad set of client groups. Because there will always be a majority who get othered by doing that, who will listen to someone telling them that 'the gays/Muslims /minorities there get special treatment'.
This is majoritarianism