Solar and wind power are also pretty environmentally horrible. Just look at the byproducts of manufacturing solar panels, and the vast land use requirements. It's gotten to the point here that you can't look any direction without seeing wind generators, and seeing what they do to the land they are placed on (and there are other bad factors, too, such as the fact that they are all government subsidized-- with stolen money, of course-- because they don't pay their own way).
I believe ignorance is the main cause of people not wanting nuclear power generation, plus the fact that people mix the generators up with nuclear weapons. If you want electricity, there is going to be a downside.