Even if modern renewables and batteries kill the need for future nuclear power plants, that doesn't excuse the consequences of decades of burning fossil fuels because environmental groups fought against nuclear power altogether.

We had better options back then, and we chose not to implement them while slowing down efforts to improve them: nuclear reactor designs could have been standardized to lower cost, even safer and more effective reactor designs could have been pursued years earlier, etc.

The costs--and opportunity costs--of inaction during that time were massive, and we're going to be paying them for generations. Renewables have a heavier lift ahead of them as a result, with less time to build out and upgrade the grid, transition to EVs, etc. The very least we can do is acknowledge the consequences.