lol, lmao even

Both the French and the Brits have nukes. They're at no risk of hostile foreign invasion and everybody knows it. Entire libraries of books and whitepapers have been written about it.

If it were about self-defense: Build more nukes, build some mobile launchers capable of also launching targeting satellites, maintain the missile and submarine fleets, and your job is done. This can be done on current military budgets, or even smaller budgets.

It's not for "self defense". It's for foreign adventurism and geopolitical posturing. Like the opposite of realpolitik.