because once you attempt to start to apply any label it becomes more and more vague. If I am a black man from South Africa who hates white people for perpetuating the Apartheid, am I welcome or am I a racist? If I am a man who's own father transitioned to being a woman and I no longer feel comfortable around trans-people because I lost my 'father figure', am I a transphobe or am I welcome? I understand these are deliberately obtuse examples. I bring them up because I never know where on the spectrum the line is drawn for these labels yet people will gladly declare somebody a 'nazi' because their dad watches Fox News. Even asking the question "when does somebody on the right go far enough to be considered a fascist?" often is met with the retort "defending nazis makes you a nazi".