Hypothetical was: So if Americans don't like Trump then, say, Italy can unilaterally bomb San Francisco?

Response was: Yes, Italy could choose to do so. However, American would probably delete Italy if Italy made that choice.

So France would not be looking at the US deleting Italy for no reason.

That would result in the obliteration of France?

You really think the French are going to sacrifice themselves to avenge the Italians?

Can it hit us?