I agree it's fucked up what Khamenei is doing. Even before the protests the government had some awful policies when it came to human rights of the Iranian people. The protestors have every right to be angry and fuck shit up.

But judging by their slogans, a lot of them are aligning themselves with their fundamental enemies - imperialists whose sanctions have led the country to its current economic state.

Unless a revolution is staunchly anti-imperialist, it is bound to be co-opted by the US to set up a puppet government and extract as much labor & resources as they can muster, by any means necessary. Remember that the last time the Shah came to power, the protests were founded in real issues and grievances of the population, and look at the outcome. Look at the outcome for Syria or almost any Arab Spring country. I guess for many Iranians getting US to support them seems like the only way to win, in which case it's a real catch-22. Maybe it will turn out that this iteration of the monarchist government will be slightly better than the clerical one, but looking at the state of US right now it's unlikely.

I am heartbroken about this whole thing, because those people are clearly fighting for a better future for themselves, and they're getting slaughtered for it. But it is likely that their sacrifice will be for nothing.