It's not federal property, though it's on the National Register of Historic Landmarks.
It may not even be state-property, though the state helps administer it.
I think it belongs to the Daughters of the Republic of Texas.
But that's just one of the many ownership tangles that secession might open up.
I’m not bringing up the legal issue. It’s the emotional issue. If Texas splits into 5 states, who gets the Alamo?