For this to actually happen, it’s going to require a major drop in the cost of nuclear power. To some extent, pushing nothing-but-nuclear has been a fossil fuel industry strategy because those high costs and long lead times mean that it’s not actually getting built.
If they want to waste their money, let em wast their money…
It’s OK - any promise with “by 2050” at the end of it means “We promise that, while we will procrastinate and do nothing about this, our successors definitely won’t do the same.”