On the other hand, I don't have a strong attachment at all to naming a branch "master" and can easily rename it without a second thought.
It's easy only if you don't care about all the people who already cloned your repo.
Recovering from remote repos renaming their default branches is no fun.
I thought it wasn't a big issue until I saw how hard one side fought to keep the name "master".
After that I changed my mind and name all of my branches main and give a little push to projects I'm part of to do the same.
Plus, words do have power:
Master craftsman? Master mold? Master copy? Head Master... Just because this word was used in relation to slavery doesn't curtail its use in language, removing it only serves to focus its "power".
Also, thats not how language works. At all. It is never how language worked. An Australian and an American are going to have a very different reaction to the word cunt.
Candidly, the erasing of words from language for any reason is very 1984, it's a book you might want to read, its a good primer to understanding how control of language is one of the features of fascism. You should probably read up on how linguistic purity was part and parcel of Italian and to a lesser degree German control of the people.
They only fight that hard because they know the people fighting to remove "master" are (as a group) acting in bad faith.
On this and many other issues they tend to lie about history and language, extort those who don't comply with threats of sabotage towards their projects and/or careers, and will equivocate and dissemble whenever confronted.
It's perfectly fine want to use "main" rather than "master" (that is probably my preference). And it is perfectly fine to suggest other people do as well. But if you suggest it others and they tell "no" (politely or not), the right thing for you to do at that point is to mind your own business.
God forbid a single implementation of popular software change a default in a fairly meaningless way. Especially since the older term hasn't been accurate in software development for like a decade. Does anyone even ship/deploy the "master" branch anymore?
But no, while we should dislike these folks for saying "we don't want a military contractor to sponsor our event", we should 100% get behind "this private company changed a term and I don't like that so obviously they are wrongthinkers"