Some zoomers and some millennials know it. Boomers don't know or actually think it's a good thing, with some rare exceptions.

Either way your take is extremely juvenile and simplistic. There's a lot more at play with revolutions than people knowing their country did something bad. It takes a lot more than that to get people off their ass, with very few exceptions historically, and even those exceptions are usually led by rich people looking out for themselves.

People need to have their own livelihoods threatened before they do anything. And there are always power systems in place that deliberately make it hard for people to organize.