Only with gun violence do we respond to repeated tragedies by saying that mourning is acceptable but discussing how to prevent more tragedies is not. But that’s unacceptable. As others have observed, talking about how to stop mass shootings in the aftermath of a string of mass shootings isn’t "too soon." It’s much too late.
We're a reactive society -- not a proactive one. It always takes an obscenity like this for us to start talking and doing. Sadly, the same goes for the climate crisis and so many other things.