Sorry but I can't abide the scientific ignorance being displayed all over this conversation.
(1) The first article you cite "Microplastic particles now discoverable in human organs" only announces that some scientists made a technique to discover such particles. The only ones they found were ones they inserted on purpose to verify their technique. That headline leads people strongly to incorrect conclusions like you have made. That's one of the main techniques of fake news.
(2) Fertility rate has nothing to do with how many people can't get pregnant who are trying. It's just a variation on birth rate.
(3) Mother Jones - here cited many times as factual - shows a picture of a bird with a plastic mesh around it. That is not what "toxic" is. Maybe powerful lobbyists got Canadian legislators to pretend that plastic straws are "toxic", but again that flies in the face of scientific fact.
Plastic is an amazingly inert substance that is unlikely to cause harm outside of physical constriction. In honor of this thread, I'm going to go eat a Lego. You can rest assured that I'll be back tomorrow to collect my downvotes.