I can fully understand being upset even though I'd probably reject the patch. It's not the content that is being debated that is sad. I don't mind either position, personally I lean towards the "don't care about so called microagressions in codebases"[1]. The way this request was handled would upset me a great deal though so I can understand why he reacted the way he did. R is cool, sad to see a good member of the community leave.

[1]"exclusionary as all hell" is too religious for my taste. Please change that language.