I wouldn't put it quite like that. Wallace was enforcing Alabama law as passed by the Alabama legislature which allowed segregation. That law was in conflict with federal law which forced integration. Only after the National Guard came in did Alabama change their state law.
How is that any different than Schwarzenegger enforcing California law as passed by the California legislature which allows medical marijuana? That law is in conflict with federal law which says that ALL marijuana is illegal. The National Guard hasn't been called up in California only because of politics, not the law.
"They don’t have to enforce federal law."
I never said they had to. Alabama didn't, right? And what happened in Alabama?
Gosh, you just don't get it, do you?
The federal law in conflict is not based on any constitutional grant of power to the federal government agreed to by the States, and enumerated in the Constitution. It's based on a fraudulent "living document" interpretation of the Constitution made up by FDR's liberal New Deal court.
Man, let’s just end this conversation, you are simply totally unaware of how federalism works. On top of that, you are unwilling to listen when it is explained to you.