I didn’t say that all revolutions are bad. It’s usually a mixed bag, some good, some bad.
What I was saying is that violent revolutions and civil wars, like all wars, usually bring death, destruction and poverty for the normal everyday people. So if you are expecting better living conditions right after a revolution, you are either so poor that anything is better or you better be on the short list of elites that will get to grab power and rebuild the country, otherwise you are going to suffer. Maybe your kids will be better off… Maybe.
And yes, there are also independence wars, but those are different from civil wars. The US is independent, Americans don’t consider themselves being occupied by a foreign entity.