Fully agree with all of that. The difference I see with ActivityPub is that we can say they can use it all they want but we won't be connecting with them or interacting with their users at all.

And they honestly probably won't care, but it makes it clear where the rest of us stand and communicates to current Fediverse users a commitment to stay as free as possible from corporate influence. I felt like there was no room for milquetoast answers to that question.