Yes, that's what we live for and we should stop being cowards but own that decision firmly and unequivocally so that we can move forward (or rather backward in that case).
Now about those claims about mental health, racial differences, and all that jazz... Here are a few numbers and studies to help to understand what the Gun problem is possible and is not about (surely)!
What Explains U.S. Mass Shootings? International Comparisons Suggest an Answer
Worldwide, Mr. Lankford found, a country's rate of gun ownership correlated with the odds it would experience a mass shooting. This relationship held even when he excluded the United States, indicating that it could not be explained by some other factor particular to his home country.