I also have been to Russia, and not because it was a socialist haven but because I was afforded a wonderful opportunity, owing to a flatmate who was Russian whose friend visited and offered me the chance of a return visit. I also speak a little Russian, although not nearly so much as kromo will. And one thing I gained from that wonderful experience was a chance to see the place for myself, and a chance to talk to people who did live through the Soviet regime. And my Mum enjoyed (I use the word "enjoyed" in the broadest possible sense) a trip to Ceaucescu's Romanian regime.
So no -- I don't consider myself ignorant of the realities of what an extreme form of socialism can be like. It was fairly obvious that the people I spoke to, that the places I saw, and the conversations I had showed the hollowness of pure, unadulterated communism.
Although then again, the Winter Palace at St. Petersburg rather betrays how bad it can be if you allow the rich and powerful to become ever more rich and powerful with no regard for the people, so at the very least you have to appreciate that the revolution of 1917 was pretty inevitable and understandable, no matter what replaced it. And broadly speaking that's my point. It seems that the best you can offer is that it's worth just settling with a party that is, right now, devoid of any real ideas and authority and seems content to just plod along with some sort of idea that it's entitled to power and doesn't have to do anything to earn that power.
The Labour party under Jeremy Corbyn does not remotely compare to what life was like in Russia pre-1990, and never will, and to pretend otherwise is, frankly, to insult those who suffered under that regime. I wonder which of us would really benefit the most from studying Communist Europe. Clue: not me.