“Food supply collapse” isn’t a simple binary switch, though.
It’s possible that whatever food leftover will be distributed in the most militarily efficient way possible, and a large number of civilians will be left to starve so that the remenants of conventional military forces could continue their fight to the death.
Of course, I think this scenario will not lead to outright human extinction. But it does make the post-nuclear war situation a lot more difficult, despite civilisation nominally surviving the ordeal.
“Food supply collapse” isn’t a simple binary switch, though.
It’s possible that whatever food leftover will be distributed in the most militarily efficient way possible, and a large number of civilians will be left to starve so that the remenants of conventional military forces could continue their fight to the death.
Of course, I think this scenario will not lead to outright human extinction. But it does make the post-nuclear war situation a lot more difficult, despite civilisation nominally surviving the ordeal.