“China is helpless against US because US possesses 20 times as many nuclear warheads as China”
“Russia is helpless against Britain because Russia possesses 30 times as many nuclear warheads.”
I think the basic point of this exchange is that it shows Brexiteers are stuck in nostalgia for the Battle of Britain, Winnie, and the days when Britannia ruled the waves.
(Thanks for the commercial from the British defence company)

Brexit could cause EU to 'make all member states go into eurozone' - or face...
BREXIT could spark political tension in the EU as non-eurozone countries may face "political marginalisation" unless they adopt the dreaded currency.