It's hard to even begin to describe how stupid this is- but you can start by pointing out that the military gave up seeking superiority in nuclear weapons back in 1975.  The theorists concluded that there was no such thing.  That's why there were agreements to ramp down the number of weapons, not because the Pentagon started becoming a bunch of peaceniks.  

And the second part:  an arm race- with who?  If you're having an arms race, you have to be arming up for some eventuality.  But Putin is Trump's buddy.  Why would Trump see it as necessary to arm up against Putin?

Or China:  the US has 5000 nuclear weapons in its arsenal, 1550 deliverable  China has less than 250, and has been at that number since about 1980.

What arms race?  WTF? (Again).