Delta made a one-piece plastic toilet in the 70's. The shop I worked for had a red one on display. It was feather light. We never installed it, and I don't think we sold any either. It felt kind of flimsy.
I've never felt good about plastic chairs either. There are a few more expensive and more solid ones out there. One thing I like when sitting, is something that doesn't move around underneath me. Unless it was made to be a rocker.
That has surprised me too. Frankly I'm stunned by it. It was never logical. If you leave politics out of it, we would be the best of friends.What is breath-taking is how these bright and meticulous people could have built human death factories - on the surface, its the most civilized country on earth.