That article is about BPA and Pthalates. Those are chemical additives that can leach out, albeit at very lows levels, from some plastics. They are not inert.
Microplastics are inert and have never, as far as I know, been directly linked to harmful health impacts.
https://www.theguardian.com/environment/2021/dec/08/microplastics-damage-human-cells-study-plastic
Well we won’t know the true effect of it for years but plastics once inside the body are not clean. So I’m not saying anything definitive except the rather obvious that there is fine reason for concern. Yes, they can be transport mechanisms for the PEPs but also potential mechanical irritants/disruptors of cells.
At the least, it’s a foreign substance that isn’t supposed to be there. At the worst, it can lead to cell death and slowly weaken the immune system over time. There’s also evidence it can affect reproductive organs, some believe it’s not a coincidence men’s testosterone has been steadily decreasing over the last few decades.
Microplastics are largely excreted but Nanoplastics in particular I would argue cannot be considered inert in the fullest sense of the word.