Which doesn't make it illegal to feed the poor, that just means you need a permit to do so. As long as those permits aren't ridiculous then why is that a problem?
For two reasons:
1) Why should you need a permission to give away your stuff? Requiring a permit for an action is pure authoritarianism. It might be a lesser evil in some cases - for example, hunting licenses to keep an animal population from collapsing - but it's an evil nonetheless, and should only be used if grave consequences force the hand. And no, "I feel uncomfortable seeing poor people" is not a grave consequence.
2) This particular permit is specifically aimed against poor people, and as such will cotribute the economic and moral decay caused by pretending poverty and prosperity are earned by vice and virtue respectively. It's our good old friend the Just World Fallacy doing its usual disgusting work, by both reassuring you that you are quite safe (since you're moral) and that the victims don't deserve a single cent of your help. Unfortunately, a fallacy is endangered by exposure to reality, thus the need ot keep the realities of poverty out of sight. So, this particular permit exists to help reinforce a particularly evil and self-destructive form of self-delusion.