This. We're at the point where homosexuals can feel safe coming out of the closet and racism (or at least the public expression of) has an intense social stigma against it. Yes, things like the glass ceiling still exist, but women can get those jobs and live independently as opposed to years ago where they were essentially the property of the men in their lives.
It's not perfect, but we're getting better. For you to ignore that and say society is getting worse on the single basis of school shootings is disingenuous.