Stop fighting wind
They won't open their eyes on the very simple fact that previous communist countries were dictatorships... That a dictatorship is communist, capitalist, religious or whatever it doesn't matter. It's a dictatorship.
Now could we implement communism without dictatorship? That would be an interesting question.
But don't argue just put those idiots on ignore. They're too stupid to discuss anything outside of their beliefs.
I never saw a communist refusing to admit capitalism has its pros.
I never saw a capitalist admitting communism has its pros.
It isn't difficult to see where is the open mind.
They didn't just become dictatorships magically. Socialism and Communism were the preferred methods of usurpation for many of these dictatorships. You simply lack the intelligence to understand this process of degradation and what causes it. You think you have the answer but all you have is the same old genocidal dictatorships with a new face and an Instagram page.
Communism at best is "successful" until it runs out of resources and a way to motivate its people to produce resources. Once the resources are gone and there is no work incentive, guess what? You are now all slaves and you go to forced work camps or else the country collapses. This is the guaranteed outcome EVERY. FUCKING. TIME.
Communism has its pros like cocaine has its pros. It feels awesome for like 20 minutes then you feel like shit and you want more. You get addicted to it, burn through all of your savings, and now you are blowing people on the street for crack rocks. That is Communism in a nutshell. So if by pros you mean you have a tiny moment of euphoria before a horrible grotesque world is imposed upon you then, sure it has pros.