It is probably the only thing that can really buy us time. Sure we cannot dispose of its waste currently, but it buys us time to find a way. We will find a way to solve the waste issue. Besides, the waste produced is actually quite little, and we do have great solutions for storage. As for your second point, Chernobyl could have been an even worse disaster indeed, but it is a plant built in a time when it was fashionable to built bigger and larger plants. Today, the strategy is to built the plants smaller, making the impact of such disaster also smaller.
Strange thing is that they are not even valuing their own privacy. Adding “backdoors” to E2E encryption, or whatever that means, will also impact them. If a backdoor exists, malicious parties will find and exploit it. Legislators own messages, videos, photos and other media will no longer be safe either