The world’s worst famines in the 20th century were in Communist countries.

Look at what Dennis Prager wrote in The Rational Bible: Deuteronomy about Communist countries in the 20th century in his commentary about Deuteronomy 11.17:

Nature does what nature does, one may think. Nevertheless, it is a fact, certainly in the twentieth century, that evil societies have disproportionately suffered from famines. Under Soviet rule, Ukraine suffered a famine in the early 1930s that was man-made and intentional. Soviet collectivist policies killed at least five million Ukrainians. In the period between 1959 and 1961, famine created in China by Mao’s catastrophic “Great Leap Forward” killed at least forty million Chinese. In 1984-1985, a famine under the communist Derg regime in Ethiopia led to at least half a million deaths. As one American observer put it, “Curiously, all of the world’s worst famines during the twentieth century were in communist countries. Chine (twice!), the Soviet Union, and North Korea.” That these were all human-induced, not God-induced, famines does not negate the point: Human evil led to famine.

The Rational Bible: Deuteronomy, p 199