That has nothing to do with American Exceptionalism, but the Left needs to slander the concept as much as possible.
Precisely! Mass murders occur in a lot of other countries, but usually with the means available - machetes come to mind and poison gas for the really adept - if these people had access to guns, they would use them as well - mass murders are rare, and that’s why they make the news.
Parents, don’t let anyone (including you) tell your child how absolutely FABULOUS he/she is and how he/she can be ANYTHING he/she wants to be if he/she just sets his/her mind to it. Forget aptitude, ability, strength, perseverance, intelligence, etc etc etc - not everyone is going to be as impressed with your little darling as you are... even when he wants to be gay reporter, or something.