I agree with you, the general public doesn't give a shit. There will be headlines for a few times, some people change their phones, and that'll be it. The biggest of these movements, I think, is the "de-googling" one. There's a myriad of articles, subreddits, guides, websites even, listing alternatives. And look what happened to Google. Nothing.
When the alternative to apple's surveillance is to smash the phone against a wall, and buy something that's much less convenient, suddenly surveillance is not that big of a problem. And this is very important to note because many world's powerful entities are moving in this direction.