"Evolve" here is a neat word for "countless trillions of creatures die preventable deaths or otherwise fail to reproduce over geological time". If your terminal goal is to "finally stop caring about micro plastics" rather than "protect Earth's existing ecosystem", why wait? Just nuke the planet to glass. Microplastic worry over.

(A similarly nihilist viewpoint comes from the people who pontificate that "the planet will be fine, it's humans who will suffer". Sure, if by "the planet" you mean "a lump of mass orbiting the sun". Low bar for your ethical framework.)