What's worse is that it's not even a principled view. If you really don't trust Google, then you shouldn't rely on Google's software no matter what policies they change or promises they make. The problem is actually far more profound, that citizens are now expected to have a closed smartphone from one of the duopolies which government and corporate entities need to trust, which means they cannot allow it to be entirely your device. This is a tacit policy that must be defeated as a policy matter.
The real problem is that:
1. Most manufacturers prevent us from unlocking the bootloader, adding custom signing keys and relocking it. Interestingly the Google Pixels allow that. This should be mandatory.
2. Many apps choose to ban alternative OSes by use of Play Integrity, i.e. checking that the OS is signed by Google. This should be illegal.
3. Bonus: it should be mandatory for manufacturers to make it reasonably easy to support from an alternative OS. That means publishing device trees, for instance. This should be mandatory.
I really believe we should fight for that. Then we wouldn't have to care about what Google does on their side.
Developers either want to make money or work for someone who wants to make money.
In either case they will be forced to.