This recycling how-to (desktop) is pretty informative but also shows how much cannot be recycled in the US mostly just because the facilities don't have the capacity to sort everything and small plastics clog machinery. There are a lot of low effort hacks to research to avoid purchasing/using the small non-recyclable plastics that are simple. It's important to be mindful that every person can and does affect pollution by taking responsibility for creating less waste, or just minimize whenever possible. We can clean, prevent, and change the way the world works.