This is the coddling referred to in a sibling comment. What basis do you have for thinking such misconceptions are unavoidable? This is tantamount to saying "people can never change", which flies in the face of all evidence I've seen. It seems to me entirely more likely that most folks simply don't take the time to practice decent cognitive hygiene.
Surely, the parties responsible for relabeling the default branch will see this as tacit admission of guilt on the part of GH and wield it as vindication of their views going forward.
Rather than pushing back on the issue, challenging these people to perform the self-analysis needed to disabuse themselves of faulty logic, decisions like GitHub's only work to foster and perpetuate a distorted world.
Evidently, this is somehow too much of an ask. How did it ever come to pass that it's _everyone else's_ responsibility to kowtow to the lowest common denominator? Why is it verboten to hold them to a higher standard?