Not getting fat is easy, avoiding microplastics is not. One problem affects people with a certain lifestyle, the other affects everyone (it's an environmental issue).
Also, as the article points out, the amount of microplastics accumulated in living organisms is still rising. It's something that needs more attention.
I would argue obesity is also an environmental issue and is not necessarily an issue of lifestyle. Sort of akin to smoking 40 years ago. Yes that's a lifestyle but also not really.
Not getting fat is easy, avoiding microplastics is not. One problem affects people with a certain lifestyle, the other affects everyone (it's an environmental issue).
Also, as the article points out, the amount of microplastics accumulated in living organisms is still rising. It's something that needs more attention.