> you are upsetting an existing power system

That has nothing to do with communism specifically, so isn't a very strong starting point for your argument. You're essentially saying that no significantly different system can stably replace the current system, which is of course an ahistorical claim.

> each time the outcome was the same.

What about modern China? It supports over 4x the population of the US. The US is currently falling apart politically and economically as it is, so whether its current system can scale to the level of China's is an open question, to which the answer is "almost certainly not." Is American-style capitalism only suited for smaller countries, then?

You're cherry-picking of facts to focus on and facts to ignore. You have a conclusion that you believe in as a fact, which forces you to carefully choose what you allow to enter your thinking on the subject.

I'm not actually saying that communism is the solution. But I am saying that your argument is not a good one against it.

> You're essentially saying that no significantly different system can stably replace the current system, which is of course an ahistorical claim.

I'd say most times it happened in history, significant bloodshed was incurred during a system change. Systems change as the result of revolutions and wars. People die, during those.

> What about modern China?

Modern China killed tens of million people during the Great Chinese Famine, which was caused entirely by communist policy, so I don't think your argument is working as well as you were hoping. And if that's too old for you: the jury is still out on how many Chinese died during the covid lockdown, but it's likely to be substantial. In the West, a lockdown meant you weren't allowed to leave your home. In China, it meant they welded you into your apartment, with whatever food you had available.

> You're cherry-picking of facts to focus on and facts to ignore.

Whereas you are completely blind to the inevitable outcome of the policies you pursue.

What facts do you think I'm ignoring? Is it the fairness of Stalinist Russia? The freedom of North Korea? The economic progress of communist Ethiopia? The intellectual prowess of communist Cambodia? The equality of China? What am I overlooking that turns murderous communist regimes into great places to emulate?