I grew up in South Africa in the 80s. I remember figuring out for myself at some point that for white South African men, their identity was very much based on what they did (or didn't do). Even then I thought this was fairly dangerous, though obviously I could not tell you why. If this same performative gender is one of the factors which has contributed to the rise of right-wing populism in, at least, the USA and Great Britain, then it may have even greater significance than I realised.
About time I read Judith Butler.