>Ideas very similar to globalization have a long history in socialist thought.
Yes, it's important to note that Hitler started out as a Socialist, at the dawn of Socialist thought. He differed with them on the idea of globalization and multiculturalism. As it turns out that's a pretty huge ideological split, and in Hitler's case, it became a violent one. He basically said: "screw you guys, I'm going to start my own Socialist Party - with blackjack, and hookers. And racial purity, global war, and genocide."
That's why you get rightwingers accusing the Left of being "Nazis" because the "Z" in the NAZI acronym stood for the German word for Socialism.
As the Nazis began to gain ground in Germany; they used propaganda tools to tell Germans what they wanted to hear: "you're a 'master race', and all others are inferior", and "We'll get rid of these foreign influences, and degenerates of other races, who are the cause of all your problems!"
At the time, REAL socialists ran counter protests, and would even riot at Nazi meetings and demonstrations, and there was a lot of civil violence over this issue. (Which is today, romanticized heavily by the far-left, anarchist, and 'antifa' movements). In their minds, WWII was a large-scale playing out of this conflict, between Soviet Socialists, and German Nazis, who lost. The result was the bombing of much of Europe (and especially Berlin) to Rubble. Millions dead.
The rise of America's free-enterprise system was seen as a repudiation of these two extremes of thought (Socialism vs Nazism). And became an extreme viewpoint all it's own. It became what the Socialists, and Nazis were rebelling against, and now we're repeating the whole thing all over again.
I think anyone who thinks they are "left wing" AND anti-globalist, is ignorant of history, and quite confused. Part of that is due to the anti-globalist propaganda, which mostly uses the argument: "these foreigners are causing all your problems - let's build a wall and get rid of them". (can't really argue for 'racial superiority'; because it's so easily disproven - very nearly nobody who thinks they're "Aryan" can actually trace their ancestry back long enough to make a case that they're not a mongrel just like the rest of us - the only way they can accept this ideology is to be in denial).