With all the news of CSAM going to be scanned on iPhones, which people are even going to keep such content on iPhones anymore? The news of this has been so prominent in the media, people not even in tech have heard about it plenty. If you are a Person of Interest that consumes/distributes such content and are a tad aware of the news, you aren't going to use iPhones/iCloud storage anymore.
Apple will then have a list of all the people who have an iDevice but disabled iCloud in August, 2021.
I then bought a System76 laptop to move away from my Macboom.