Are you sure they are leftists? Because first of all, Bashar Al-Assad is a Nazi. He hates the Jews, he gasses children, he's a fucking Ba'athist. Ba'athism is Arab National Socialism. Ba'athists are Nazis. If these men are American Ba'athists, they should be thrown in the same prison as the Oathkeepers, Proud Boys, and Aryan Brotherhood. Not to mention the fact that these are white boys waving Palestinian Flags. Maybe they're in solidarity with Hamas, the terrorist group that deliberately puts missile launchers in schools and hospitals, using children as human shields? Not to mention the Hamas Charter, which has been called the most antisemitic document since Mein Kampf... Or maybe they're with Arafat's PLO, the organization that collaborated with West German Neo-Nazis to murder Jews at the 1972 Olympics in Munich. Not to mention Arafat's mentor and largest influence, Mohammad Amin Al-Husseini, pictured here in 1942 with his best friend Adolf Hitler. The full extent of Amin Al-Husseini's involvement in Germany remains somewhat mysterious, we know that he was instrumental in getting Himmler to allow Albanians into the SS, despite the fact that Albanians were Slavic and the SS usually only allowed Germans. Additionally, some historians have pointed out that the Final Solution started being planned almost immediately after the first meeting of Hitler and Al-Husseini, leading to speculation that Palestinians are as responsible for the Holocaust as the Germans. However there is not a lot of evidence supporting that theory, so I probably shouldn't repeat it.

Anyway, my larger point is, that anyone waving PLO flags around in "Solidarity with Palestine" already sets off major red flags, and is possibly a Nazi. But if you're standing with Bashar Al-Assad and hosting a protest in support of the genocide of all six million Israeli Jews, you are not "probably a Nazi," you're just a Nazi.