It really depends on how you define “successful.” If your measure of success is based on how closely these societies resemble Western, liberal, capitalist societies, then, yeah, you’re probably not going to see a whole lot of “success,” but that’s not what these revolutionary movements were trying to achieve. I would say that first and foremost what essentially every communist movement was striving for was just autonomy and independence, and many have been successful in that regard. Vietnam is an independent nation, instead of a French colony. China, similarly, is no longer under the thumb of the British. You may not like what these nations do with their autonomy, but that is what they were striving for and they have achieved it.
You know that meme that came out of the pandemic? “We are the virus.” I’ve thought about it and I don’t agree. We’re not a virus, we’re more like a large asteroid impact.
Periods of rapid climate change are often associated with mass extinction events. Earth could experience a mass extinction event like the one that wiped out all non-avian dinosaurs, as a result of this period of extremely rapid climate change that we’ve created.
No, we’re not a virus, we’re a natural disaster on par with some of the worst to ever befall this planet.