That model works because there is no question of scale or mass production, no external client, not enough civilians involved to put a strong political aspect on it, so virtually no external pressure to do anything about it.
Basically we’d need volunteer based self-sustained communities living in the middle of nowhere to replicate that in a non military setting.
There aren’t that many naval submarine bases, and they’re not particularly close to most of the population.
Unfortunately, nuclear reactors need transmission lines to population centers, and we can’t just concentrate reactors into less than a dozen massive stations for the entire country.
Basically we’d need volunteer based self-sustained communities living in the middle of nowhere to replicate that in a non military setting.