We will need to find methods of removing micro and nanoplastics from our bodies. We are already ingesting them from multiple sources. There is already research about bad effects on male sperm quality [1], DNA damage [2] and more. By the time we clean up this stuff (if ever) in our products and services humanity will already have large concentrations of plastics in them.
[1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7967748/
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7936647/