I think most people who hate homeless people are conditioned to do so because of their experiences and watching TV. Homeless people are perceived as "icky" and "weird" but it's not because it is their fault, they were failed by capitalism and the capitalist state.

In most countries in the third world which were mixed economies before dissolution of USSR, the so called "middle class" (better paid white collar workers) didn't have contempt for the poor and homeless and that the state should do things to reduce poverty. Neoliberalism made it so that is no longer the case, you are supposed to pick yourselves up.