Your last four paragraphs are all but a direct invocation of Godwin’s Law.
You might not want to face it, but your country needs to keep those immigrants out. If they can flee from their mess, the Zimbabweans won’t be forced to take responsibility for Mugabe. The only way someone is going to bring down his regime and end the turmoil is for Zimbabweans to be left with no recourse but to kill him, kill his main supporters and start fixing his mess.
We have the same problem with Mexico. The reason that Mexico is still the way it is is because it is so easy for Mexicans to flee north. That puts precious little pressure on the Mexicans to fix their own country.





