Plastic packaging pollutes the oceans and causes microplastics.
Ocean pollution is a structural problem and is not related to plastics. However, plastic entering the oceans comes from 10 rivers in Asia and Africa. That means that, if it is correctly recycled, plastics do not end up in the seas.
Furthermore, plastic packaging does not cause microplastics. The main sources are synthetic fabrics and the friction of the tyres on asphalt.
Sources: River plastic emissions to the world’s oceans, Lebreton et al. (2017)
Primary Microplastics in the Oceans: a Global Evaluation of Sources - IUCN 2017