And that is why he gave that answer, because he didn't want to actually address the issue. Instead he wanted to deflect and bring the "debate" into a place where he can dictate the narrative and direction. Yes one mass shooting is too many, but when you blame a small percentage of people disproportionately, or imply it's a more serious problem, then you are veering away from the original question and bringing it to a place where you can complain about transgender people.