I Am So There

Hell is other people
Jean-Paul Sartre

Apparently in some circles the prejudice against plain-spoken people* is so strong that it is perfectly acceptable to ignore anything they say, and to tell them that it's their own fault for calling it like they see it.

Of course, when you ask the bigots how this is different from ridiculing or denigrating the opinions or experiences or observations of people based on their skin tone, say, or gender, etc. etc., they continue to not hear you.

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*Doesn't really matter if you replace "plain spoken" with "tactless" or "asshole."  If you're so offended by someone who habitually gives it "with the bark on",  that you automatically ignore anything they say, then you're a narrow-minded bigot.