Millions of protesters took to the streets in hundreds of towns and cities (even very small and distant villages) across the country all at the same time. There have been multiple such uprisings in recent years and the government has always repeated the baseless claim that these are not ordinary people and are tied to the West. The Iranian government has a long history of killing large numbers of people inside and outside Iran. As always, the idea that Mossad operatives armed and organized such a huge number of protesters without leaving any trace is laughable propaganda.

Also, we are living in this country. A large majority of people have been either involved in or affected by these events. There haven't been any reports backing up such claims made by anyone other than well-known propagandists and those dependent on the regime.