Immigration is a federal issue; states cannot make any policy pertaining to it. That's how federalism works. I am surprised that an alleged conservative doesn't know this.
Governors of states in the west are providing State National Guard to protect the border. Florida has a Nationa Guard. They are under the Governor. This is where Tom Gallagher comes in. If the feds are slower than molasses in a crisis, you bet I want the Governor to abide by his oath to protect Floridians.