Feeding extraordinarily inflammatory propaganda to the undecided segment of the population through social media probably does make a significant difference in elections. Fanning the flames of fear of the 'other', whether that's based in racism, poverty, ignorance, homophobia, religion, or nationalism, makes us all more fearful. It makes the world a darker and more dangerous place too. Treating the 'other' in the way you would want to be treated and not treating them the way you would not want to be treated turns out to be a universal truth. We live on a small planet in a very large universe without an escape plan, should we screw up. We may want to behave better...for all of our sakes.