We need more options than just Android or iOS. Sure Android is "open sourced" but we all know its limited without all the Google things also installed.
We need a true third competitor.
Having had time to cool off, my response to this is to continue using Apple devices and supporting their privacy-focused way of CSAM scanning rather than the worse alternatives.
BUT, I'm going to start buying and supporting alternatives in parallel, and eventually start contributing to them.
If my biggest concern is government overreach, yet I think that we're "not there yet", then its incumbent upon me to be a small part in helping to make sure the alternatives are ready once we do "get there".
My reasoning being that in the FOSS world there's not a single company you can pump funds into (Pine64 does not proft much or at all from their devices, and Purism is just one company, not yet shipping the phones in large quantity), but individual developers scattered all over the world DO contribute and DO need our support.
It's the only way, until we get more Pines and more Purisms (minus the drama).