Citing the popularly touted reason that DOMA unfairly discriminates against homosexuals, Holder described the administration's decision as 'appropriate, and unique, but not unprecedented'.
However, the language of Holder's opinion on DOMA I think reveals a misunderstanding concerning the reasons it was originally passed; reasons that show it is a legitimate and ultimately constitutional legislation. The traditionalist's stance against gay marriage has been once concerned with an understanding and a protection of the nature of marriage, as outlined and explicated in a great deal of articles and papers. A summary of the defense of traditional marriage isn't necessary here; what is crucial is that this defense does not choose to discriminate against a certain group of people. Unlike discriminatory laws and attitudes such as the ones that prevented African-Americans and women from being able to vote and participate in the public forum, laws that defend traditional marriage seek to arrive at the essence of What Marriage Is.
Just as any just law rules against certain actions (people who steal are sent to jail) and not against certain people (we don't punish people who are born with a natural inclination towards theft), so does DOMA rule against actions and not people. As such, it does not discriminate against homosexuals at all. I feel that this is what Holder and the Obama administration miss when they describe DOMA as discriminatory. Rather, DOMA takes a rigorously defined understanding of marriage and restricts the federal government from challenging this definition.