Anyway, this reminds me of a time many years ago when I lived in London, and an Arab friend of mine told me he'd heard there was a demo planned outside the Iranian embassy, so he was going to go an offer some cross-cultural solidarity and did I want to come too. (For context I think this was after some obviously very bent "elections" in which Achmedinnerjacket had got about 103% of the popular vote.)
Most of the protestors were, I assume, in favour of some kind of secular republic as an alternative to the Islamic one, but there was another, far smaller demo going on just up the road, made up of (presumably mainly upper-class) Iranians who supported a return of the monarchy. There didn't seem to be much interaction going on between them and the much bigger main group.
It was a very well-dressed crowd. I don't think I've seen so many Armani sunglasses in one place before or since.