yes, people think they are living healthy lifestyle for example if you eat fish thinking it's healthy but you may not know that fish has micro plastics inside it's flesh from the polluted ocean/seas that eventually goes inside human body.
Do you have any research papers linking microplastics in fish with certain cancers, and how/why is microplastic in fish is more harmful than... All other microplastic we i gest?
That paper doesn't address the question being asked: are microplastics in fish a particular cancer risk?
If you want to blame fish for ill health, you could do more than citing microplastics. Fish (especially in the oceans) tend to accumulate heavy metals like mercury. The risks from that are far higher than a tiny amount of microplastics.