Every single one of those people were tragedies, no doubt about it. And there will always be fatalities while people use FSD. You cannot prevent it, because the world is big and full of unforeseen situations and no software will be able to deal with them all. I am convinced, though, that using FSD judiciously will save far more lives than removing it will.
The most damning thing that can be said about full self driving is that it requires good judgement from the general population, and that's asking a lot. But on the whole, I still feel it's a good trade.