It doesn't, says this Pole. Yet, don't focus on 1939 to 1989. In parallel to demands of BLM and decedents of US slaves, look further back. Look to the Crimean Tatar and Nogai Horde enslavement of eastern Europeans and sale to Constantinople, the Middle East, Genoa, and Venice. It continued from the mid 15th century until the Russians took over Crimea in the 18th. Poles, Russians, Ukrainians, Belarus and others were captured and sold. Well over a million souls.
The Cossacks arose partially to fight the slavers. The Soviets expelled every Crimean Tatar from Crimea (free Ukraine began allowing them to return). The Poles have a saying. Instead of "I need this like a hole in my head," some say "I need this like a Tatar in the kitchen."
My ancestors came to this country because of the Kulturkampf, in the 1800s.