Google Play is like a shopping mall, a privately owned public space.
There will be standards.
If you put up some questionable ads in your local mall, you'll get asked to have them taken down.
Those spaces are not intellectual zones, or bastions of expression. They are public/common areas and subject to some kind of basic rules of expression.
Your local library has some rules.
So does your school.
So does your University.
There are infinitely url's that you can use to access content according to a different set of norms, you're free to use them at any time.
This thread exhibits one of the failing aspects of intellectual idealism, in that it so often fails to take into consideration the community - you know - 'other people's opinions'.