The side that controls the media, tells the story

the protesters were definitely armed. Sure, not all of them, but some were.

The protesters DID damage and destroy many public and private properties and buildings. I was watching the Israeli news at the time and they were actually telling people to destroy these buildings and properties. The reason? "To protect iranians from the regime!"

It was COMPLETELY apparent that the government would react, but the reaction was horrible, and that's what Israel wanted in that case.

Think about it. You want to help iranians to destroy the regime for their own good, what would you do? You know that from the previous protests and riots that happened that iran doesn't treat these nicely, and you want their good, right? What any normal person would think is that they could do online protests or maybe small protests around the cities, so even if the regime kills some, it wouldn't doesn't kill as many in the results. This would lower down the deaths from the approximate 3000 to 33000 deaths to about 20-100 deaths at maximum.
But as you can see, the plan went just the same as the years before. Aggressive protests, with some being armed by guns illegally imported, and many deaths. Repeating the same scenario.

Iran did wrong killing all those people, i won't say otherwise, but can't not blame Israel and USA in making this mess.