You may be correct about that, especially if you refer to our early several "radical" parties and the fact we experienced a bloody civil war by the middle 1800s.
I was looking at the more immediate and direct causal circumstances that led to the birth of Stalin's Russia, the end game of quite a time line of history. (Whether Putin's government will provide the opening move for his people of a new timeline is another matter.)
Those circumstances I refer to, are IMO more comparable to what we see happening here at the moment.
This is just the beginning.