Are you presently worried about someone robbing you because they are starving? In the third-world, absolutely. In the United States anyone who's starving has ready access to SNAP, food banks, or (worse-case scenario) dumpstered groceries.
I'd be more concerned about being robbed because someone has a serious substance-abuse issue, was raised in a broken single-parent household, there's a complete lack of entry-level jobs, or something of that sort, none of which is aided (but rather is perhaps aggravated) by increased levels of income redistribution.