the op post is correct: being anti-anti-X is not the same thing as pro-x
try this:
Christopher is an anti-theist: he actively believes that all gods and theologies are stupid and wrong, and that God does not exist.
John is an anti-anti-theist.
does that mean that John MUST be a theist?
no.
thankfully we didn't need linguistic games to recognize Trump as a fascist: his actions make him what he is, regardless of his position on antifa.