Depends on where you’re talking about. In Australia the right wing are using nuclear as a diversion to slow down the transition to renewables, so they can stay on gas and coal longer.
There’s no nuclear power in Australia, and the time needed to create the industry, train or poach workers, create a plant and get it up and running makes no environmental or economical sense compared to what they are already set to achieve with wind, solar and storage.
If you’ve already got nuclear up and running, use it, but each new plant needs to be compared to the alternatives for that specific location, and the track record of the nuclear industry and government in that location.