It's nice of you to have used the relative popularity of your trivia format and turned it on its head to make a stand about an issue you believe in. However, I will second @Coinnin's criticisms pertaining to gameplay. The fact we can't simply get out of the questions when we start them forces you, in theory to confront these realities, but at the same time the timer doesn't allow us to let it sink in, and every USA question being answered with either “true” or the highest number means we don't need to read it as we can intuit that every worst result is correct.
In other words, I respect the intent to make an antigame, but ultimately those elements gamify the tragedies. Additionally, it fetishizes the quantity of shootings and bodies without asking us to think about the underlying causes, the downstream effects, possibilities for resolution. I hope you are willing to consider this critique, as I am trying to approach your endeavour under the good faith assumption that you wanted to do something constructive. Unfortunately, the game comes off as either just a bad trivia game, or, if we engage with its core message, just angering and depressing. This demotivates people who agree that there's a problem and further alienates those who were lying to themselves about it.
Other than those design issues, your underlying philosophy in making this is very commendable and I'd love to help signal-boost a v2 of this game, for which Newgrounds is a great medium.