Precisely--SCOTUS holds that some things that you view as infringements are actually simply acceptable restrictions. It stands to reason, then, that other restrictions which you might also believe to be infringements (eg, unconstitutional) would also not be viewed as such by the Supreme Court.
This is why I see it as unreasonably dismissive when you say things like, "You are in favor of the infringement and therefore do not support the Constitution." According to prior SCOTUS rulings, one can be in favor of what you see as infringement and still support the Constitution, because it is simply your definition of "infringement" which differs.