I was going to upgrade my mobile phone this year as getting either an iPad or a MacBook. I love the Apple ecosystem and having been using their computers since the 1980's, so getting new Apple kit seeemd like a no-brainer. However, I believe they have not thought through the implications of what they are proposing to do. They've crossed a threshold that is likely to have implications far beyond detecting CSAM. So for now I am leaning toward not upgrading my phone and I am certainly not buying an iPad or MacBook. Will I divest entirely from the Apple ecosystem? Probably not fully, because I use Apple products at work.
Something tells me there's LINUX at home for me in the future. I used to work on workstations using various flavours of UNIX before, and occasionally I use C-shell and AWK (yes, AWK) on the Mac, so that might work out OK. Honestly, though, I wish Apple would just reverse their decision.