I'd not be posting this if Trump's claim of 45,000 protesters killed had any credibility.
Trump's exaggeration is so flagrant that all western claims of what happened must be discounted. Dirty tricks were going on. Stories made to order. It seems the protests were professionally organized, and not an organic reaction of the Iranian people.

What we know about the protests sweeping Iran
The crackdown on protests in Iran has resulted in multiple deaths and an internet blackout.
Multiple deaths is not the same as 45,000. By any stretch.
And the United States did the same thing to kick off the War in Ukraine. Same revolution, different color.
If it had been 45,000 we would have seen them from space.