Because we make sure to keep it from working that way.
Rich countries don't seem to have much trouble with destroying 'backward' countries when it suits them[1], maybe Vietnam could use a bit of this kind of economic 'destruction' you describe.
[1] https://en.wikipedia.org/wiki/Vietnam_War
Because we make sure to keep it from working that way.
Rich countries don't seem to have much trouble with destroying 'backward' countries when it suits them[1], maybe Vietnam could use a bit of this kind of economic 'destruction' you describe.
[1] https://en.wikipedia.org/wiki/Vietnam_War