Nuclear has quite a few major perceived problems: bureaucracy/authoritarianism, uranium (fuel) reserves, capital-intensive projects, risk of accident, prolifera

Nuclear has quite a few major perceived problems: bureaucracy/authoritarianism, uranium (fuel) reserves, capital-intensive projects, risk of accident, proliferation, waste disposal, real decommissioning costs... One of them is the NIMBY effect, and it may be a show-stopper for such microreactors, which need to be produced in large batches in order to be affordable. I can't imagine how a sufficient amount of them will be accepted by the population. Even maritime underwater versions will probably be rejected.