The irony of course is that:
https://www.sea.edu/plastics/frequently_asked_questions
3) That no one can actually demonstrate how this will ecologically affect the oceans or it's biological processes. Yes, it will be there a long time, but it's speculative if that will actually harm the ocean.
I wasn't limiting my scope. I'm not claiming that some animals out of the hundreds of thousands, or millions or tens of millions of any particular species hasn't been harmed. I'm suggesting that there is no evidence that the ocean ecosystem has been harmed.
sea.edu said:Plastics are present in every major ocean basin, concentrated in regions that should be pristine environments far from sources of pollution on land. Plastic debris can threaten marine organisms through entanglement, especially by large debris such as derelict fishing gear, and by ingestion in organisms ranging in size from zooplankton to fish and larger animals such as sea turtles and seabirds. Additionally, plastics create a habitat for microorganisms and other species and can transport potentially invasive species to new regions of the ocean. Plastics are known to carry organic toxins such as PCBs, PBDEs, and PAHs, and may be responsible for the transfer these and other chemicals to marine organisms.
Couldn't plastic waste be ingested by a animal/organism and in turn the animal/organism be ingested along with the ingested plastic and so on?