How about Android but implemented by the car company? (Literally using apps like Google Maps but the main app menu is the car company's skin). I believe this is in effect what GM is doing? That satisfies your argument of using Android or Apple.
So they will abandon it and your car (which has a lifetime of 10+ years) will have software that stopped being patched 3 years into it.
And so you'll have a crypto-node on wheels. Hell no please.
The only way out of that is to ignore the infotainment and use your own device like with an AUX port.
CarPlay/Android Auto gives us the best of both worlds. It's just a dumb pipe so as we upgrade our phones, we get new/better features.