So next, this exchange:
Why did you talk about how South Africa "isn't really any better" when we're clearly talking about nuclear proliferation? Why would you do that? Did you
#1- not know that South Africa used to have nuclear weapons, and that obviously now the nuclear situation there is better?
#2- want to move the goalposts just to try to 'win' a discussion?
Neither #1 nor #2 reflect very positively upon you, I must say, so I hope there's a third option there. Then, as the problems mounted up (the four I specified), I stopped having a debate with you.
EDIT: For the sake of completeness, I added the further exchanges.