Except what you mean by cordial, is you wanted people not to challenge you on your assertion that there is some "nuance" to be found in an opinion that it is understandable if people are nervous when black pilots are flying a plane, in case they've been put there by affirmative action. Cordial, to you, is being able to say that freely, without reproach.
It didn't quite work out like that for you though did it. When you made that utterly ridiculous assertion right at the start of this thread, several people called it what it is (a racist trope) and you didn't like that being pointed out to you. If you're the enlightened and non-tribal type you say you are, then surely you reflect on that, realise you've got yourself into a bit of a muddle, admit you might just have got that wrong, and everyone just moves on.
Instead, you've doubled down and gone down some faux-intellectual "I'm operating at a much higher level than the rest of you" cul-de-sac, and quite frankly it is cringeworthy.
That's the long and the short of it.
