The word "neglect" as it is used creates an incorrect framing. But is actually a great word. The whole problem with Nuclear in the US is that we neglect the projects. Our plan around large, long-term nuclear creates a vicious incentive structure. Recouping billion-dollar investments leads to to nuclear plants being run as long and as cheaply as possible.
This is a recipe for disaster. Until we figure that part out, we are correct to hold off building them.
Perhaps a better framing is "We've neglected to figure out an incentive system that allows us to build, safely maintain and safely decommission nuclear projects."