It probably doesn't really matter, as this thing is never going to be built. I kind of suspect everybody is just going into "ok grandpa" mode until he loses interest and starts chasing some other half baked thing.
It doesn’t matter if you assume that large scale conventional conflict between the us navy and the plan over Taiwan is impossible in a world with strategic nuclear weapons, otherwise it very much does matter, because navies are built on the timescale of decades and the plans you make today very much determine the future you will live in 10/20 years from now.
> It probably doesn't really matter
Millions—if not billions—of dollars are likely to be wasted on this over the coming years.