Not only is the use of "God bless America, " an example of the Government/Administration demonstrating their preference for a particular form of religious belief, but it makes America as a whole look full of itself. Citing responses from other petitions that have been posted on We the People, there seem to be contradictory views by the administration on this.
See the first paragraph in the response at : https://petitions.whitehouse.gov/response/addressing-freedoms-speech-and...
and the final paragraph of the response at :
https://petitions.whitehouse.gov/response/religion-public-square-us-motto
These two responses are clearly contradictory. As an atheist and a firm believer in the Bill of Rights, I take serious issue with any form of religion/non-religion taking precedence.