>If it’s plastic based, it seems that instead of lead we’ll get microplastics and other plasticizers.
There are many different types of plastics, and many (most?) do not use plasticizers. You are in negligible danger of exposure to them from polyethylene (HDPE/LDPE/XLPE). The main source of plasticizer exposure is flexible polyvinyl chloride (PVC) (also rigid PVC isn't nearly so bad); you might also be thinking of polycarbonate, for which the monomers themselves are intrinsically rather nasty, or for polyurethane, which has similar issues but not quite so bad.
Microplastics are a problem everywhere.
But, seriously, if you're going to criticize things, and there are a few valid criticisms of plastic piping... please learn about what you're criticizing so you can make the correct criticisms and not just make unuseful knee-jerk statements.
Is there any plastic that is just carbon chains? My understanding is all plastics contain additives. This [1] is just one study of many that show HDPE (and other plastics) leaching phthalates. Please don’t come at me or anyone with the ad hominem attacks. This is something I have looked in to in the past, and is of great concern of mine.
There are many different types of plastics, and many (most?) do not use plasticizers. You are in negligible danger of exposure to them from polyethylene (HDPE/LDPE/XLPE). The main source of plasticizer exposure is flexible polyvinyl chloride (PVC) (also rigid PVC isn't nearly so bad); you might also be thinking of polycarbonate, for which the monomers themselves are intrinsically rather nasty, or for polyurethane, which has similar issues but not quite so bad.
Microplastics are a problem everywhere.
But, seriously, if you're going to criticize things, and there are a few valid criticisms of plastic piping... please learn about what you're criticizing so you can make the correct criticisms and not just make unuseful knee-jerk statements.