Chernobyl and the Exxon Valdez are pretty comparable in scale and scope the environment, though Chernobyl certainly had a lot more human casualties.

That being said I’m not sure public opinion actually has had that much of an impact. If they wanted to, the same companies who keep building new oil pipelines no matter how many protesters need to be beaten into submission by cops could absolutely have pushed through adding on some more reactors to existing plants. The problem is that while profitable, nuclear is not as profitable as heavily government subsidized oil and gas much less solar, and so no one but some of the public really wants to put a lot of money into it.