This is a horrible state of affairs!
I fear that publishing this on social media may not have the results we wish. I feel it would be better off to send it to newspapers, news outlets and the like. The AP might run a story. Fox would certainly pick it up, and possibly CNN. There are just too many trolls on social media.
I have seen very good results from full- and half-page advertisements in leading papers. Perhaps this is something also to consider spending money for?