What exactly is an extremist view? I wonder if the taking away of professional sports from "fanatical" viewers, or fans may also result in more people joining e

What exactly is an extremist view? I wonder if the taking away of professional sports from "fanatical" viewers, or fans may also result in more people joining extremist political and religious tribes regardless of their intellect. Of course maybe sports fans are also "less able to do complex mental tasks" or is that just what the "nerds" would have us believe?