A little straw man here, a little twisting of the meaning of clean there and voila: trying to eat healthy is classist and racist.
Junk food is being marketed at poor uneducated people. Yes! That is even more reason to fight it, not find escuses to indulge in it. And if you are really into social justice and the like, that yoga guy and the whole white middle class is not the enemy of the poor black guys. They are not the owners of junk food mega corporations, nor do they pass laws to subsidize corn syrup.
If you want to "stick it to the man" stop buying his horrible products.
"Fuck you white middle class yoga guy, I'm eating all the Nestle shit I can find, take that!" - how dumb is this?