What wrote:There's no such thing as the "alt-left".
The "alt-right" is a thing that people call themselves. You can go to their forums, websites and reddit subs.They call themselves "alt-right" to distinguish themselves from the conventional right wing.
They emerged within the last 20'ish years as a mixture of white identify politics, internet rage and hyper-nationalism.
There's no such thing on the left.
Radical leftists call themselves the things they've always called themselves, depending on creed: Anarchists, communists, socialists.
They have held the fundamentally same views for the past 200 years.
The only people using "alt-left" is people trying to justify nazi violence.
Socialists are radical leftists?
Has anyone told Corbyn?
