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.