Immigration and national security are issues which are the purview of the federal government, not the states. The federal government is an agreement reached among the states. If you harbor illegals, you are stabbing the rest of the states in the back and reneging on your legal, constitutional agreement to adhere to a common policy on this issue. Illegal immigration is an issue that effects the whole country which is why the founders gave the federal government authority over it.
Is California able to prevent the illegals they harbor from crossing over into neighboring states, transporting drugs to the rest of the country, or planning terror attacks to be inflicted on the rest of the country? Of course not. Their actions endanger the country as a whole, not just their own state, and are illegal.
If a state wants to pass a speed limit of 40 mph, or tax soft drinks at 200%, that’s their business, but California is breaking their agreement with the 49 other states when they undermine federal policy on this issue, which they are constitutionally bound to follow.
“If a state wants to pass a speed limit of 40 mph, or tax soft drinks at 200%, that’s their business, but California is breaking their agreement with the 49 other states when they undermine federal policy on this issue, which they are constitutionally bound to follow.”
Bingo.