I'm American and racists have always been here, Trump isn't new. And in Europe, it isn't insane to want to control your borders and not have rules made in Brussels that you must follow made by bureaucrats that aren't accountable to your nation. It's a crazy idea I know, but politicians have problems with these notions and blame the tools the opposition used to organize instead of being better.
Facebook, Google, and Twitter have problems and they need some reforms, but the rise of companies is not nearly the sinister event people make it out to be.