I don't think it's possible to do the science they want JWST to do unless you get out to L2 or beyond. They are basically measuring heat, and Earth puts out a l

I don't think it's possible to do the science they want JWST to do unless you get out to L2 or beyond. They are basically measuring heat, and Earth puts out a lot of that. And they want to be in an orbit that doesn't pass into shadow, for reasons of solar power. I understand, and somewhat share, your concerns, but JWST is designed the way it is because that's how it has to be done to accomplish its goals.