Using nuclear fuel leaves less for weapons and more demand increases cost for weapons too. Accidents happen, but they won't be the end of our species.

I think we should use more nuclear energy, I think nuclear powered container ships are under explored for instance. But it's not so simple. Nuclear energy programs can become nuclear weapons programs. A larger uranium mining and processing industry lowers the barriers of entry for building a weapons program. We're not going to exhaust our uranium reserves anytime soon. We're not going to be wiped out by a nuclear accidents, but we're heading into a future of stronger storms and more frequent wildfires, and nuclear power has a way of making disasters even worse.

I've been thinking about nuclear powered container ships for a while. Ships burn the worst fuel, bunker fuel or heavy fuel oil. Nuclear is a lot more clean.

And yes there's the risk of greater nuclear proliferation but we already have colossal stockpiles of nuclear weapons that pose a massive threat to mankind. That's been the reality for 70 years.