Nuclear regulations are no worse than aviation regulation. Yet planes manage to be cost competitive.
Cutting regulations isn't necessary the win people think. If safety regulations are cut, it risks accidents in future.
Nuclear needs to move from bespoke builds to serial production.
Thats not the full picture. Aviation exploded in growth -- you can easily expand operations and work to smaller margins. The US shut down the nuclear industry intentionally from the 80s until the last 5 years from regulations.