As much as I agree with you, I would be careful with saying "I will never stop being a communist" and "they just weren't socialist enough". When I left a religious cult there came very similar arguments from people who are still in it now. They "will be Christian forever" and anyone who leaves the church "just didn't believe enough"
Note that I do in fact agree with you here, it seems strange to change your analysis of the world and believe that all opinions are equal and valuable. They aren't. But we also need to be aware of ourselves and our susceptibility to propaganda from the other side too. We are not immune and it's important to show caution.