Sounds like you're letting 'perfect' be the enemy 'good'.
An OS not being abused by Google or Apple to corral users is good enough for me.
I couldn't care less whether it's proprietary in this case.

Give me a fully open source phone, that's capable of being a daily driver without funneling data to Google or Apple and we're talking!
How nice that people can have different requirements for their phones 😉