This is what I mean - your baseline assumption here is that African Americans as a whole are dependent on government help and expanding social safety net is about keeping African Americans dependent on government help. This exact attitude you have - association of black with dependence on government help - is what has been used in American politics to mobilize those who benefit from government programs to vote for politicians who oppose those programs. They feel that they are not "freeloaders" or relying on government help because they don't fit the stereotype. This is one answer to GP's question as to how freeloaders and government workers can spew such vehement rhetoric against freeloaders and government workers.
And this isn't some theoretical thing - this has been a conscious strategy
From:
http://en.wikipedia.org/wiki/Southern_strategy
Questioner: But the fact is, isn't it, that Reagan does get to the Wallace voter and to the racist side of the Wallace voter by doing away with legal services, by cutting down on food stamps?
Atwater: You start out in 1954 by saying, "Nigger, nigger, nigger." By 1968 you can't say "nigger" — that hurts you. Backfires. So you say stuff like forced busing, states' rights and all that stuff. You're getting so abstract now [that] you're talking about cutting taxes, and all these things you're talking about are totally economic things and a byproduct of them is [that] blacks get hurt worse than whites. And subconsciously maybe that is part of it. I'm not saying that. But I'm saying that if it is getting that abstract, and that coded, that we are doing away with the racial problem one way or the other. You follow me — because obviously sitting around saying, "We want to cut this," is much more abstract than even the busing thing, and a hell of a lot more abstract than "Nigger, nigger."
Add this to the fact that we have a black president named Barrack Hussein Obama, you can see why and how the very people who had no problem with their own government jobs and Bush's profligate spending are suddenly upset with freeloaders and government spending problems.