I think it's because you've made it personal.

Perhaps you don't intend it that way, but when you say " why do you always take it so personally" it gives away the fact that you are repeatedly expressing your frustration about the same issues--keep in mind that when you post here, you're not addressing the American Public, American elected officials, American Media, the NRA, or whoever, you're just hammering awaay at the same small group of people, most of whom share the same astonishment that you do, with the small addition that we live with the consequences.