The right wing / far right wing European nationalists have always been in the 'anti globalisation' movement since the 1990s, and western far right orgs have infiltrated third world national struggles (Iraq, Libya, Iran, Palestine, Hizbullah and others) for their own anti Jewish bullshit.
Add to this the Duginist (he was close to the national bolsheviks) Russian fascists who have RT and many other platforms.
These three forces and others (David icke, David duke, Alex jones and others) have all been gaining ground in anti imperialists circles.
The 'refugee crisis' of late summer 2015 flipped these forces together and united them into a new fascist project that has brexit and trump as their leading political projects. Most / many western far right organisations are in this spiders web of fascist alliance.