Some folks won't get it, no matter how well you explain it, because they do not seek to understand in the first place. For them, being reminded that there is somebody out there that is somewhat different from them is already an annoyance, even before they realize they don't even understand you.

Whether you are neurodivergent, LGBTQ, or you get around on a bicycle, they treat you with the same derision and lack of sincere curiosity. Lindsay Gibson has written about these sorts of folks.