That may be true for now, but what happens long term? Articles I've read say that microplastics in the body only accumulate, and don't really decrease. Maybe that's just because we're exposed to more everyday. But even then, reducing exposure will only get harder as more particles increase in the environment, from all the plastic breaking down. There must be some point at which effects start to show. What is the lethal dose? Or what is the dose that starts significantly increasing cancers? Or birth defects? Or something we haven't even considered?