I don’t know why you keep bringing up the word “ideal”. Marxists are opposed to idealism, we’re staunch materialists. Saying that “things change over time and place” doesn’t automatically negate historical examples , and following those historical examples doesn’t imply not achieving progressive victories over time.

You claim to follow the path that works, but that’s what the western left has been following for the past 50 years and look where that led us.