You're confusing practicality of implementation of a law with its likelihood of being passed. They mostly aren't connected.

DC, and the gun law being ruled upon, ironically, is a good example of this. Crime was supposed to go down when this law was passed. It didn't. The folks who want to ban guns don't care that it didn't.



I hope for full "incorporation" in the ruling. But I expect to be bitterly disappointed.