No, he's a states rights guy because he's a states rights guy, and he holds to that position even when states pass laws he disagrees with.
Look, the two most decentralized first-world countries that I can think of are Canada and Switzerland. These are not draconian racist hellholes; they're considered some of the freest countries in the world.
This is a guy who thinks abortion is the most evil thing in the world and still opposes federal laws banning abortion because he thinks it's a state issue. I disagree with him about abortion, but the fact remains: he's not some scheming ne'er-do-well who wants to bring back Jim Crow laws, he's a consistent, ideological antifederalist who thinks decentralization is the way to go.
In the majority of recent, real-world instances, local laws have tended to be more liberal than federal laws. We've seen this with gay marriage, we've seen it with medical marijuana, and we've seen it with election reform (see also Calif. Prop. 14); we may very well soon see it with recreational marijuana.