Civilian Nuclear Power is a dual use technology. The UK needs to subsidize it's civilian nuclear program if it wishes to also remain a nuclear power. The alternative is it de facto becomes the 51st state of America.

The UK needs to subsidize nuclear, as well as wind, solar, and everything in between.

There's a reason countries like the US, China, Japan, India, South Korea, and others are investing in this kind of domestic capacity and spending tens to hundreds of billions to do so.