I’ve spent a lot of my life since the 1950s, on Atlantic coast beaches between Jones beach inlet and Fire Island inlet. Gilgo, Cedar, Tobay beach, and many rural areas in between and never saw any garbage. Shipping lanes off shore to NYC 35 miles away. There are sunken wreaks 30 to 60 miles off shore. They attract fish and fishermen. Unfortunately sometimes fishing lines would hook onto a wreck and you would have to cut the line. So yes a lot of tangled plastic lines down there. 50-60 feet down. One wreck was the Texas Tower that topped over in a storm.
Also plastic does not dissolve. They put acid in plastic bottles. In fact one time the dog we had was in the yard having trouble trying to do #2 and rubbing his but on the ground. I took a look and a piece of plastic was sticking out. I grabbed it and pulled it out over a foot long. Must have went in the garbage and ate something that was in that bag. I hear the old plastic turns into tiny pieces, I never saw any myself, and even if the fish ate it, it doesn’t get digested and turn into fish flesh. It just comes out the anus and back into the ocean.
Those scuba divers with the nice photos?? I recently found out people make good money selling photos on Etsy. My son recently got into this. I can imagine some special interest groups pumping a money making agenda would hire and pay for photos to help recruit more “soldiers”.