I've seen everything out there; miles and miles of abandoned fishing nets with the glass ball floats, dead whales, trees large enough to easily sink a yacht, abandoned vessels (I assume; not underway and very, very rusty), containers and acres and acres of trash. When I sailed the Mediterranean I called it southern Europe's garbage can for there were huge rivers of plastic shopping bags.
From Newport to Providence RI the bay is littered with trap floats; they are a serious hazard to navigation IN THE MAIN SHIPPING CHANNEL and the RI water cops and the USCG couldn't care less about them or our trashed running gear.
So either get used to it and take a chance, or stay in the slip and dream of sailing. Nobody is going to listen to us complaining about the trash, man made or otherwise, that many of us see quite regularly when we do venture off the dock.
It sucks, but money trumps clean water, clean air and an ocean that our children's children will enjoy.