ok, if you want to use your car to book Airbnbs I have no response to that.
Now I really think you have absolutely no idea, what the most useful features of CarPlay are. And that's also fine. Use your car and your phone like you want.
But try to accept that some people use more features than you and don't like to add extra steps just because of some powerplay by car companies which think they can do a better UI than iOS/Android.