The politics of it all introduces a lot of problems. You don't just have some single guy or few people that decide to build a plant. You gotta go through federa

The politics of it all introduces a lot of problems. You don't just have some single guy or few people that decide to build a plant. You gotta go through federal politics to even be allowed to attempt to build a nuclear facility, and lower levels of government will have a lot of push back to not put the actual facility near themselves, especially fuel and waste storage. There is a lot of pockets to lube up with money along the way before you even get to having your plant designs reviewed and approved. There are also international politics to deal with in most cases depending on how you are sourcing your material. And by time you get all that done and are ready to build the plant, there is an entirely new set of politicians to introduce more potential holdbacks, and then any one working in the construction phases are going to be demanding a premium just because of what it is. And although those costs aren't unknown, if you do state all those extra costs straight out people will just assume its going to cost even more on top of that anyways and deny the project from the start.