>>508312277In the Communist Manifesto Marx along with the other communists state that the working man, or proletarian, has no country. He is oppressed by the bourgeoisie who do. Nationalists will tell the proletarian that he has to work with his nation’s bourgeoisie, that they have shared interests but they have diametrically opposed ones. The bougeois who owns the means of production employs the proletarian to make profits. He wants to take everything from the proletarian he can, pay him as little as possible, no benefits etc and the proletarian wants higher wages, and frees himself by seizing the means of production with the rest of his class.
We see class collaboration most often promoted in warfare. Let’s look at Ukraine and Russia for example. The Russian bourgeois says they must invade to denazify Ukraine, and the Ukrainian bourgeois says the “people” must fight to save the motherland from invasion. But what does the homeless Ukrainian have to gain from war? Getting their legs blown off by a drone so they can go back to homelessness once the war is over? What does the Ukrainian worker have to gain from defending “his” country? Being robbed, oppressed, and scammed by people speaking Ukrainian instead of Russian? The arbitrary line on a map staying the same instead of changing? What quarrel does the Ukrainian hobo have with his Russian counterpart? The proletarian has the least to gain from warfare and the most to lose. The wealthy bourgeois can always move to another country and live fairly well off if his country goes to hell, but the proletarian will likely remain stuck. If he can move, he may be taken in by a country looking to use his desperation as an opportunity for low wages.