Ghenghis Khan was not a socialist. Julius Caesar was absolutely not a socialist. The Ottomans were pretty much being completely nationalistic when they conducted genocide in Armenia, Greece, Assyria. In Indonesia, the slaughter of anyone suspected to be socialists in the 1960's is today regarded as meeting the definition of genocide - the socialists were the victims in that one, not the instigators! Rwanda - that was completely ethnocentric, no socialists there. Circassian genocide in Russia - no socialists there, that was all Make Russia Great Again shit. The Balkans! Many many times over in history, they're no strangers to genocides, and that's about which people have a country with borders and which people don't. Bengal, no socialists there. Algeria, 1830 - 1871 - that was colonial France, no socialists there! That was all "you're French now, salute our flag or die". Genocide of the aboriginals in Australia, indigenous tribes in Brazil, indiginous tribes in OUR COUNTRY! The United States sure wasn't socialist when we wiped out entire nations right here. Thirteenth century Cathars - no socialists there! That was France again. 17th Century Ireland - Oliver Cromwell was not a socialist. The Wu Hu genocide in ancient China - no socialists there. The Battle of Carthage in 146 BC - that was PURELY a grudge match between two nations; doesn't get more nationalist than that - you were Roman or you were Carthaginian and both sides were looking to wipe the other's people off the map. Darfur: no socialists there, that was an ethnic power struggle for control over a nation. Kurdistan, East Timor, Burundi. German South West Africa, 1904 - 1908: Germany was not socialist even a little bit, that was an imperialism thing. The White Terror during the Russian Civil War - in THAT one, Jews were killed by the people who were there to fight against the socialists! Punjab, 1984 - no socialists there. Rohingya; Burma is a military dictatorship, the persecution of ethnoreligious groups there are purely fueled by Make Burma Great Again nonsense. Selk'nams in 19th Century Chile - no socialists there. The Moriori - ethnic war, no socialists there. The Mapuches in Patagonia - Argentina was not socialist, that was some Make Argentina Great Again nonsense.
Boy howdy are you completely wrong!