Why is your last statement true?   You make a declarative statement with no justification.   I can find lot's of reason to use the word racist and bigot, although I hope I never do that as part of a stereotype of say 'conservatives'.  

 If I'm talking about a specific white supremacist group that's another matter.


*Bigot has a very harsh tone.  If you see me say bias, please don't extrapolate that to mean the person is a bigot.     That's been confused by at least one writer on this site.    We all have bias, very few decision we make aren't influenced by bias.   Our thought process is NOT math, lot's of events and experience shape our bias, both consciously and unconsciously.