|Crazy people have always existed. Lots of people have crackpot theories and racist views. Some of them would even form a club (Flat Earth Society, the KKK) to join together with other people who shared their terrible opinions.
The success of social media is that it connects people. Friends from childhood, relatives of relatives, and even people who live on opposite sides of the world but share the same interests.
The problem with social media is that it connects people. Connection is good, but certain ideas that used to be relegated to hushed conversations in dark basements are now championed and amplified by social media's ability to bring people together and give them a voice. It's not really social media's fault. It's the users, i.e. us. Social media just made it easier. #technology