Welcome to human nature, where evaluations are conducted and assumptions are made based on presentation.
This is not a novel concept. Is your financial advisor a man or a woman who wears a stained white undershirt, cut off jeans, and advises you while talking with a mouth full of food, wig falling off, and a nose full of mucous?
How would you feel dropping your kids off in a classroom with a teacher wearing stripper gear who greeted the class with "what's up lil nikkas we about to learn some ish today." At that point would it matter how qualified and effective a teacher she is?
Stop acting obtuse. Presentation is essential if you care about being effective. If you don't care and you just want to talk then