Not true. The fleet of Russian icebreakers relies mostly on nuclear propulsion. Wikipedia lists four different cargo ships equipped with a nuclear reactor at some point of time. The regulations and infrastructure are lacking but the interest is there.
Burning oil to move goods around the world is not a sustainable long term solution. Nuclear propulsion might be.
I've thought about this somewhat. We only trust the military to run nuclear reactors; ok, can we work with that? The US military is already a grift and jobs program; maybe we can turn the Navy into a grift and jobs program that is also an electricity utility.
