But there are working definitions of extremists. I'm a fan of those that classify people with unbounded beliefs, or whose beliefs are not sustainable in the lo

But there are working definitions of extremists. I'm a fan of those that classify people with unbounded beliefs, or whose beliefs are not sustainable in the long term. Someone who believes that all sex is evil would be an extremists as that doesn't really work in the long term. Denying current climate change is not extremists, but believing that climate change is impossible would be. Someone who opposes a particular tax: not extremist. Someone who believes that all taxes everywhere should be opposed: extremist. Someone who thinks a president is a jerk and should apologies for something: not extremist. Someone who believes the president is a lizard and will never accept any apology: extremist.