So someone can say "You shouldn't in general be afraid of communism" but if I give a reason why they might be afraid, I'm being generally ideological? That is an interesting double standard you have there.
You can't conclude a double standard from an isolated comment, though (for obvious reasons) people often try. Anyone who cares to look at the history will find plenty of users on all sides being chided or banned for breaking the rules. Does it all add up equally? I have no idea.