Earlier quoted context omitted.
the entire population is over 20 million? Maybe. The World Factbook says it was 11,350,111 last July. https://www.cia.gov/library/publications/the-world-factbook/... The Factbook also notes a population growth rate of -0.787% (despite a birth rate more than twice that of the United States), and adds: there is an increasing flow of Zimbabweans into South Africa and Botswana in search of better economic opportunities (…
This is caused by the economic problems, which came mostly from economic isolation.
Zimbabwe was never formally isolated from the outside in the same way that, say, apartheid South Africa was. The only sanctions in place were restrictions on the sale of military goods and targeted sanctions against much of the ZANU-PF and ZDF hierarchy. It's a popular belief that Zimbabwe has been under full economic sanctions, but this could not be further from the truth. In fact, such is the eagerness of the international community to help the country recover that official and developmental foreign aid to the country more than doubled between 2000 and 2005, reaching $367 million at its peak. So there was no economic isolation; instead what we have seen is a country that has destroyed its ability to engage in any meaningful level of economic activity whatsoever. It's not isolated, it just can't do anything with the access it has.
Fact is, nearly one third of Zimbabwe's people have left the country, and they have done so in direct response to the actions of the ZANU-PF government, which have included severe political repression, arbitrary state-sanctioned violence and the kind of disastrous economic policies the rest of us all thought were confined to the 1920s.
Amongst the émigrés have been virtually all of Zimbabwe's best and brightest; the skilled and talented individuals who had once been such a major part what appeared to be the country's boundless potential. And even if Zimbabwe were to experience a change in government and some sanity were to be restored, it will take decades to rebuild the country's economy to its previous levels and very few of the skilled individuals will choose to return. Not after they've established successful lives for themselves in their new host countries. The place faces a bleak future.
I don't usually like to throw the word 'evil' around, since it usually oversimplifies complex situations and makes people fall into the trap of considering events along binary lines. But I don't think there's any doubt that history will quite rightfully regard Mugabe and his ZANU-PF confederates as thoroughly evil bastards. We can debate his supposed justifications all year long, from British support for land-reform (or lack thereof) to perceived Western interference, but none of those come even remotely close to justifying what they have done.
Honestly, I think that the absurd claim you made earlier in this thread, effectively stating that Zimbabwe's economic problems are due to externally-imposed factors, is utterly delusional and illogical. I think you should re-examine your assumptions on this subject.