I'm with you on the cost basis for this. It makes no sense to die on this hill.

But to answer your question, it's unclear how "inclusive" this actually is. No person of color I've talked to about this (at least 3 that I can recall) has thought this was anything other than weird virtue signaling by admittedly mostly white social justice warriors. Their feelings on "master" terminology ranged from mild bemusement to "I REALLY DON'T GIVE A SHIT."

If the only people being "included" by this are people whom are themselves being uninclusive, even if for the right reasons... I question how "inclusive" this actually is.

That said, I'm definitely in the idgaf camp. My new repos are "main" because that's the default. Most of my old repos are still "master" because I never bothered to change it.