Maybe you should switch to a phone which uses a different OS than the manufacturer of the apps you don't want to use. For example, Apple iPhones don't include Google apps on their devices but it DOES include its own apps on its devices.
It is Google's operating system on an android phone. It only stands to reason Google would include its own apps on the phone. You can always disable any apps you don't intend to use but to say Google shouldn't incorporate its own apps in its own operating system is not being realistic.