This is such an uninformed take. Plastics are literally everywhere in modern life. Not just the store bags or straws and lids, but objects in the home like appliances, buckles on backpacks, medical devices, items we launch into space. It’s not been shown to meaningfully decrease life expectancy and we may find ways to remove it from our bodies. Cold turkey and you essentially have no infrastructure to replace what is made with plastics.
No they aren’t. They typically don’t even get recycled unless they’re both clean and dry which most people don’t do.