Plastics are one of the greatest modern inventions today. It’s saved literally millions of lives and makes possible countless things in manufacturing that previously literally could not exist. It’s probably the single greatest contributor to reducing human climate change of any other invention (by drastically reducing packaging weight and thus transportation costs around fuel).
It’s not without downsides, but too often people just say “plastic sucks” (or equivalent) without thinking of what a world without plastics would look like. A de-growther’s dream perhaps, but everyone else’s nightmare.