The Soviets claimed a lot of things. Of course, so did, and still do, the United States. But it's not for nothing, I think, that you find no shortage of contemporary Soviet and Ukrainian, and modern Russian, attestations of the Holodomor - whereas on the other side of things, not even the furthest right-wing anti-FDR John Birchers ever made even the slightest attempt to claim that any such thing happened in the United States. No one denies the Dust Bowl was bad. No one in the US, as far as I've ever been able to determine, has ever even tried to claim the Dust Bowl was that bad.