Choice? Ok, so I disable Google Play Services (b/c among other things I want to stop all the damn tracking you do with it) and the phone breaks down. Literally useless.
Just swipe away pre-installed Google apps? Yeah right, by clicking a disabled uninstall button? Right, so you just want me to disable, not wipe'em off. Great! More choice.
Using only a tiny space to store Google apps? Again, I have seen Google Play Services hoarding 30% of my 2GB storage.
Worried about developers dealing with a fragmented ecosystem? It's called web apps (you call them Progressive Web Apps). Just give more power to the browser and developers will be super happy to use a common framework to target ALL devices.
Truly open, choiceful forks like CyanogenMod exist precisely b/c everything you've written here is bullshit.