Thanks for the comments and the link.
We face a tough world out there, and other nations are pursuing their own updates to their arsenals. Russia is. China is. North Korea is. Iran is. We’ve go them at all stages of the readiness spectrum.
We are therefore confronted with the reality that we must do so also.
My expression of this is not intended to infer that you don’t agree. You very well may.
We are still susceptible to the starry eyed nincompoop in the White House, and whether they will eviscerate us or not.
Somewhere on the technological horizon is the next generation of strategic arms. It may be a defensive system that neutralizes enemy delivery vehicles or the warheads themselves. Before that happens we'll have to build and test new warheads.