Except that the extremeness of the statement is subjectively based on your own outlook. And there is an implicit value judgement in making that decision about what you consider "extreme". Arguably all people are sexist, but not in a particularly problamatic or socially unacceptable way. It is human nature to notice gender after all. And applying such logical rules to something so nuanced and subjective is flawed, and will unavoidably lead to an argument over semantics.