That is a good point in favor of batteries over nuclear. If we made fossil fueled power plants illegal, the external costs of nuclear waste should be considered

That is a good point in favor of batteries over nuclear. If we made fossil fueled power plants illegal, the external costs of nuclear waste should be considered. As long as fossil fuels are used however the risk of runaway climate change is a much bigger issue than nuclear waste. The risk of runaway nuclear waste is unlikely.