Why is "Racism in the Soviet Union" trending?

Wikipedia Overview

Soviet leaders and authorities officially condemned nationalism and proclaimed internationalism and anti-nationalism, including the right of nations and peoples to self-determination. Soviet internationalism during the era of the USSR and within its borders meant diversity or multiculturalism. This is because the USSR used the term "nation" to refer to ethnic or national communities and or ethnic groups. The Soviet Union claimed to be supportive of the self-determination and rights of minorities and colonized peoples. However, it significantly marginalized people of certain ethnic groups designated as "enemies of the people", pushed their assimilation, and promoted chauvinistic Russian nationalistic and settler-colonialist activities in their lands. Whereas Vladimir Lenin had supported and implemented policies of korenizatsiia, Joseph Stalin reversed much of the previous policies, signing off on orders to deport and exile multiple ethnic-linguistic groups brandished as "traitors to the Fatherland", including the Balkars, Crimean Tatars, Chechens, Ingush, Karachays, Kalmyks, Koreans and Meskhetian Turks, with those who survived the collective deportation to Siberia or Central Asia legally designated "special settlers", meaning that they were officially second-class citizens with few rights and were confined within small perimeters.