What Communist plot is that, C? I had it beat into me when I was your age, by a North Philly cop, that I was part of one, but hadn't even known about it until then.
Actually, though, circular logic is a Commie favorite used for suppressing enemies of the State. When you reflect on it, communism is an extension in some respects of the same unworkable notion that solipsism is. And just about as successful. Tell them they are figments, and your friends will go off to find better friends. Tell them "From each according to their ability, to each according to their need", and sooner or later your citizens will find other means of survival, not because it isn't a sweet idea but because it doesn't work. The truth may not be nice, but it kinda stays true regardless.