[[But the idea that one can use deadly force to prevent a deadly force attack on themselves is basic, and is the law everywhere in the US. There’s nothing special about Florida,]]
Except that it, stand your ground law, removes the ‘requirement’ to ‘make every effort to flee an impending violent act’
Many states require you to ‘make every effort (maybe they say ‘a reasonable effort’- not sure how they word it)’ to ‘avoid deadly confrontation’
That's not an "except", but yes, that's what I've been saying. You have the right to self-defense in every jurisdiction in the US. There are different elements to what qualifies as self-defense, and these vary from on to another. One of them concerns an obligation to retreat if you can do so safely. Some states you have to, some states you don't. In MOST you do not. These are "Stand Your Ground" states. Even in non-SYG states, there are places where you don't have to retreat. In your home for example, where it's called the "Castle Doctrine".
The press keeps using "Stand Your Ground" when what they are really only talking about is "self-defense". And they keep saying "Florida's 'controversial' Stand Your Ground law", even in cases where the principle has no bearing, and even though it's not a controversial idea.