often a really good option from a functional POV

This right here. Electronic devices are full of plastics because they are often the best, or only, way to make those devices function and remain safe. You’re not going to make a car that meets any modern crash safety standard without plastic materials. Your not going to replace medical tubing with paper or cloth. Etc., etc.

The world can certainly use less plastic, and should use less. But eliminating it completely will require either (a) developing some novel new replacement material, or (b) giving up a lot of useful things humans have developed in the past century.