I find the whole debate around drag interesting. It's been quite mainstream from the 50s, Lily Savage did BBC1 Saturday night Blankety Blank in the early 2000s. It's not subversive or ground-breaking (as many younger generations like to think it is).
RuPaul's drag race isn't suitable for children (I've watched some of the US version) and there's a lot of swearing, innuendo etc that isn't suitable for children. I think people like to announce that their children watch it because it makes them seem progressive. It's like Pride where you have people wearing bondage et al and people think that because it's got the LGBT label it's suitable for children.
This drag queen (like all of the UK RuPaul's contestants) seem second rate, and I think McCain's think they're being really progressive when in fact it just seems like 1970s basic humour instead.
Drag is supposed to be a bit of a laugh, drag beauty pageants are a subversive take on the Miss World beauty pageants, but to think of it as anything more (like a complex discussion on gender identity in a 2020s context) is pushing it.