I'm not sure if this is true though? Granted I live in Europe where topics like these get a lot of attention, but I can't recall when I last saw a plastic bag drifting about, both home and abroad.
In my experience, to see how bad this can be, these days you need to go to Asia or Africa. Anecdotally, there is a lot less rubbish in Europe than there used to be.
1. https://www.greenqueen.com.hk/wp-content/uploads/2020/11/pla... 2. https://www.mirror.co.uk/news/world-news/gallery/horrifying-... 3. https://thebalisun.com/balis-most-popular-beaches-brace-for-...
In the US, this is so common it became a movie plot point: