Burns is a big Obama partisan who manages to tie racism into every documentary. It will be a stretch to bring in to the Dust Bowl.
Nah that'll be easy as pie.
The farmers in the Dust Bowl were mostly white. White people are racist. Therefore white people were punished with the Dust Bowl for their racism. Roll Credits.
He'll figure out some way to prove the Okies were nasty racists who used the Dust Bowl to their own advantage. They created the dust storms in order to justify packing up and heading to California where they could further practice racism on unsuspecting minorities.
He very blatantly pointed the series at the need for environmental and population control - and the need for big government to save the day.