“The Frankfurt school was a group of German philosophers who fell afoul with the Nazis and they fled to the United States. They found a new home at Columbia University in Manhattan. But they were cultural Marxists, very dedicated Marxists and also very dedicated to the destruction of Western Civilization as we know it. So, what they decided to do was launch a multi-prong attack on things like the family, faith, language, political correctness comes out of this, all these buzzwords like “diversity” and “tolerance.” They used that as tools to get at the larger society and and they have been extremely successful. The most famous of their disciples is Saul Alinsky of course, who begat Hillary Clinton who begat Barack Obama.