It's the reason we left Colorado. Far too many people were deciding that the answer to the problems in their lives was to pick up an automatic weapon and kill a bunch of people. Schools, movie theaters, grocery stores, Wal-Marts.... Anywhere a large number of people could be found.
As a society, we've made "kill the MFs" not just possible, we've freaking normalized it. The root cause is not just entitlement, but a culture that says MY feelings are more important than anything of YOURS, up to and including your life. That's what has to change.