Laws only keep good citizens straight. It does nothing to deter criminals. Remember all those gun-free zones & honolulu's policy of never issuing carry permits? All that means is I follow the law. Does it actually prevent criminals? No.
Laws about not setting up homes in parks only stops me from camping, and forces me to go to the approved camping permit site for a permit to camp only at an approved spot. Does it stop them guys from setting up house in Kakaako waterfront park? Nope.
Laws suk. They only stop me from doing things. Laws never stop criminals.
All of you citizens are infuriated about the situation. But if I go and clean up the parks in some unspecified manner, would you all be happy? Probably. But would you all defend me? Nope. "The Law" would probably come down on me hard.

That is your problem. The Law is your problem. It always tells you and I how not to do something, but then some other yay-hoo goes and do it.

Perhaps I need to re-think my following of "The Law"....