No, it shouldn't be an issue in my opinion.
I think it's the word "marriage" that is kicker, maybe we should call it "civil union" or something.
What worries me is that the administration's response is that they will attempt to put an AMENDMENT to the Constitution to support what is clearly an entirely religious interpretation of the issue.
I will make it quite clear here that I support people's right to worship as they choose. However, I think that instituting religious beliefs as law will just serve to divide the country in the future. A slippery slope that could cause huge conflict.
JCM