No, I don’t think it’s arrogance. I’m not saying we have the answers, I’m saying we need to keep trying, because our past attempts were insufficient. It’s not arrogant to try to learn from one’s mistakes. And it’s not arrogant to assume that a movement’s chances of success can be altered by changing material conditions.
I’m well aware that in many cases, authoritarian socialism/communism has improved material conditions for many people. But I also notice that not a lot of Westerners defending these governments attempt to move there. All our current systems are fucked, and acknowledging that is awareness, not hubris.
In answer to your question of “which is better,” it probably depends heavily on the preexisting local circumstances. But I’m from the US, so I’m sick of being forced to choose between two shitty options in a false dichotomy. Neither. Neither is better, and we need to stop pretending what exists now is the end of political and economic philosophy. It’s not. We need to do better.
It wasn’t even a rule, but somehow I got lunch detention for losing a copy of The Two Towers with my name written in the front and not realizing they’d found it and had it in the lost and found. This was the same middle school that only had windows in the science classrooms (because that was legally required).