The principal is it's OK if a democrat does it. For example:
It's OK to rename something named after a Republican president who was shot (Mt Mckinley).
It's not OK to rename or change something about a Democratic president who was shot (ie. The Kennedy Center).
Man, give me an effing break, do you honestly believe that is the correct analogy?
As another commenter said, Obama was reverting a previous name change - he didn't change the name to "Mt. Obama and McKinley" and paint the whole thing gold.