Why is any criticism of Obama considered "racist" by the left?

The Oligarchical Collective (Politicians/Unions/Corporations) have convinced you that the "liberals" are your Orwellian enemy (Orwell was himself a democratic socialist, hence "hope lies with the Proles") when in fact you believe in supporting the exact same Oligarchy. The only difference is that you believe corporations are the good guys, while libs think government is. They are actually one in the same.