Basically, what are you going to do with a Zumwalt that you couldn't do with a submarine? Is it better at any of those tasks than a conventional destroyer?
You think wrong.
If they still have weapons, they sure as hell haven't been using their existence as a deterrent. The whole point of having nukes is letting potential aggressors know that you have them, and that, if attacked, you may be crazy enough to use them.
You must know that Ukraine was attacked 4 years ago. So the "whole point" is not applicable in this case.
It’s why Russia is considered only a regional power, despite having a larger nuclear arsenal than the US. Their ability to perform intercontinental conventional bombing and troop deployment is non-existent. To cede this power to any other nation would be catastrophic to world peace.
What world peace? The US has started two wars that destabilized a whole region, and it shows no sign of restoring anything like peace there. World peace from such a belligerent nation, one that drone strikes most days of the week, is a bad joke or a real example of Orwell in action. How many pointless losing wars does the US need to start, how many governments does it need to overthrow only to see them revert to something even worse before you get that you’re about world peace.
You are not “the good guys.” The US is just in it for money, and that money only for a fraction of its population. It’s just a good thing the US can’t actually win a war it starts, or they’d have taken over by now. What’s actually happened is the likes of North Korea looked at what happened to Libya and Iraq and realized that they needed nuclear weapons. What a great outcome for “world peace” right? I’m sure those nuts won’t sell the technology, and other countries won’t follow suit so as not be “projected” all over.
Surely all you want to do is shoot them down. Bombers are purely offensive weapons. No one needs them unless they plan to attack somewhere else
You're right, they sure aren't. But as a result no other military force on earth besides NATO has the capability to launch air superiority fighters from amphibious assault ships, and perform multi-ton circumglobal bombing sorties. That kind of capability doesn't come cheap, and shouldn't be dismissed.
Take away the B2 and we are fighting to-to-toe with Russian/Chinese long range bombers
Without the F-35 we are on equal footing with Chinese/Russian carrier based aircraft
Without Zumwalt class ships, we are going head on against Chinese missile destroyers and subs of equal capability.
The whole point is that you don't want an even remotely fair fight. "Keeping up" with others's spending, even within an order of magnitude, is a really bad idea if you can help it.