Oh really?

It is pointless to argue if Soviet Union was strong or not. Let's say you are right.

But obviously it didn't last. And at the time Soviet Union di*****anded, China was generally richer, correct?

So here is a system that (good or not) didn't last long. Will you say it is good after all?

Or let me put it in other words. Mongolia conquered China, and lots of Europe at its high time. Its empire was the largest in human history. So will you say Mongolia's system is the best ever in human history too?