I don't see anything destroying the environment in this video. Many people choose to live on a boat. I personally live on a boat but choose to live in a marina instead of anchoring somewhere. Does that make me homeless?  Not all people that live on boats anchored up are bums.  Many have jobs and are no different than the next guy except where they choose to live. There are way more bums living on our sidewalks and camped all over the city causing more damage.