“it isn’t contradictory for the same person to oppose government laws offering food stamps, welfare, WIC and Section 8 at the generous levels it is offered, and yet at the same time take advantage of those very laws he wishes to abolish”
It isn’t contradictory, it is hypocritical.
Jews do not, in general, vote for their economic interests. The frum neighborhoods in Brooklyn vote for Republican politicians who would end the very government programs that are essential to the survival of their communities. But the high income modern orthodox in Teaneck and Riverdale vote for Democratic politicians knowing that those politicians support raising their taxes.