I'll agree that there are hypocrites everywhere. Doesn't make it right.
And on this specific matter, it's the so-called "conservatives" who are advocating federal supremecy over state laws.
You have data supporting this? The majority of conservatives on the court dissented. Keenedy, the lone libertarian, agreed with the holding. What other data do you have to go on?
I thought the so called conservatives sans Anton dissented.