We know that particle pollution from coal plants, heavy fuel oil powered container ships, and cars/truck already kill a lot of people. We know that we have air

We know that particle pollution from coal plants, heavy fuel oil powered container ships, and cars/truck already kill a lot of people. We know that we have air pollution, I find it unlikely that plastic will be much worse. Do we have any reason to think so? Note. I'm not saying it's harmless, just that maybe we have bigger fish to fry first.