This would pass in Florida by huge margins as long as they don’t let the illegal immigrants vote.
The problem is that Florida’s agriculture, tourism, restaurant, and landscaping businesses are heavily reliant on illegals for cheap labor. Those interests are organized and have enough clout to block strong action in the legislature. And, so far, no one has put up the millions necessary to draft an anti-illegal immigration measure, get it on the ballot, and approved by the voters.
It passed in California by huge margins.
And then some geriatric Carter-appointed federal judge shot it down and Gov. Gray Davis chose not to appeal the ruling.