One of the cool things about dialectical materialism done right is that nothing is entirely good or bad. We are not supposed to worship the Soviet Union. We have much to learn from the Soviet Union and that includes not repeating the failures of it. Principled Marxists should welcome and be excited to hear good faith criticisms of past, present and future endeavors. As long as you sincerely want to improve humanity, it is a good faith criticism.

I don't think you're being a lib, I think you probably have some really important and vital information to share.