If anything history in Germany, Italy, Spain shows that the extreme right is a minority, the extreme left is a minority, and that both commit atrocities and violence in the name of defeating the other whilst staging and falsifying propaganda to win support for their respective causes from the ever docile and centrists. Most Nazis were not ideologues. Most 'Fascists' were not ideologues. They were opportunists, allowed themselves to be led by popular opinion, or just scared of voicing opposition.
It seems evident to me that the right wing is always better funded and more prepared to plumb the depths of human behaviour and less contained by moral limits simply because of the type of people it attracts who see like Trump, Mogg or Hunt, an opportunity for personal gain.
So what I'm saying is that the left really needs to up it's Dank Meme game or we're all fucked.