How would you dress as a liberal?
"One day this summer I was riding through Letchworth when the bus stopped and two dreadful-looking old men got on to it. They were both about sixty, both very short, pink, and chubby, and both hatless. One of them was obscenely bald, the other had long grey hair bobbed in the Lloyd George style. They were dressed in pistachio-coloured shirts and khaki shorts into which their huge bottoms were crammed so tightly that you could study every dimple. Their appearance created a mild stir of horror on top of the bus." -
George Orwell, Road to Wigan Pier
At least in Britain, it's been constant ever since Orwell's day. Sandals, shorts, bright colours, and all of it organic and fair trade.
As for the iconography though, I'm not sure you can get the art without the politics. You need the singularity of vision to build these sorts of structures. Fascist architecture, from the wedding cake in Rome to the Nazi stand at the Paris World's fair, is striking for the same reason as the goose step.
It's ridiculous but no-one dares laugh at it.
Similarly, for the outfits, a lot of the fascination comes from the darkness. Tom of Finland is never going to become fixated with a purely artistic movement, and that gay and S&M subculture that keeps it around, and of course feeds in to Hollywood, is as much about the death-camps as the leather. For the Punk movement, it's the ultimate rejection of their parents. Without the war that won't be the case.
While it's a very cool idea, I just don't think you can get the style without the evil. The Devil has all the best threads.