It started with a currency crash (which is most likely a result of US manipulation). That failed, because the Iranian government didn't immediately oppress business owners whose demands (not to sell at a loss) were found to be reasonable.

Then at least four different groups (including monarchists and Kurdish separatists) started killing civilians, police forces, setting mosques on fire, and so on (there's footage for all of this, if you have the stomach to watch it).

The Iranian government responded to that by shutting down the internet, and with force. When they shut down the internet the riots more or less stopped, which signals that the operations were conducted from abroad, the obvious candidates being the US and Israel.

Furthermore, there have been millions of Iranians rallying in support of their government all over their country, which makes sense as foreign led violence can only push you closer to your government.

You can't have a workers revolution without an organized vanguard and class consciousness. This is just old school terrorism by reactionary groups supporting a regime change to install a US puppet, like we've seen time and time again.

I make no moral judgement on the government's action, I'm just recounting the timeline of events.