That was literally my point. Some people bought electric cars because the could, not because they wanted to effect any social change.

Okay. Then don't really see the relevance here. OPs point was clearly about trying to effect social change.

Is activity pub only used on Linux desktop apps? Can't a Mac or windows user participate in mastodon?

I wasn’t trying to suggest that they couldn’t.

Fediverse use and Linux are separate issues.

Literally speaking they are different projects, but they are also similar in that they are both open source projects, often both FOSS, so the underlying philosophy behind their development is the same

product of Facebook. Google has poured Fons of money into FOSS development. Should we shun these tools?

Shunning doomscrolling is not the same thing as categorically shunning everything that Google or Meta has ever output. I think its great they contribute to open source projects, I hope they do continue to do so

Op posted create a completely false us v them narrative that just isn't there.

Personally speaking I didn't find OPs post to be especially divisive, it I didn't make me feel compelled to go harm some Windows users or anything like that, but your mileage may vary