Howdy, Marwan, good to meet you. I agree that every nation has the right to determine its own course and solve its own problems.
That being said, your response would answer a question of what you think of interventionist US foreign policy, but it doesn't answer the question that was asked. The Obama administration did indeed campaign on a platform plank of noninterventionism, but it has practiced the opposite since it took power, and it has asserted a particular interest in Egypt since the spring revolt and justified intervention with arguments of humanitarian concern. Its avoidance behavior on the issue of violence against the Copts is not explained by saying that staying out of the internal affairs of other nations is the best policy, nor would it be by saying (incorrectly) that the administration follows that as a general rule. It does not, and clearly does not sincerely think it should, so the question remains: why?