Judging by the results, home-grown right-wing terrorists and extremists are a bigger problem in America than Islamic jihadis. They have killed more Americans, if you start the clock after 9-12-2001. And if you go back to 1865, when the KKK and similar groups were founded, the body count of death by lynching, shooting, and beatings is incomparably greater for racists and such than all the twisted followers of Daesh, ISIS, al-Qaeda or their ilk.
This article is a somewhat detailed summary of the three major (and often overlapping) types of home-grown, right-wing, often racist American extremists that have been plotting to overthrow the government and to kill individuals they don’t like. Please read it and share.