Everything you mention is irrelevant if we are all dead.
The nuclear deterrent has worked the last 60 years so I don't want to lose it. Name a country with nuclear weapons that has been invaded? I want to see the world living in peace just like Corbyn but have the knowledge not to spend billions on weapons and then tell your enemies "don't worry we won't use them".
Then not spending billions on weapons is the answer isn't it? Plenty of other things we could spend the billions on that would actually benefit us all. Isn't Corbyn's honesty to be admired? Do you really think ol' mother May is going to hit the button?