Yes, he is a bad guy and a dictator but tell me what govt doesn't steal too much from its people to prop up the military and police? Btw Hitler ordered the 911 attacks and if you dare defend him, you are defending a genocidal war criminal.
So go along with it or you are a Hitler defender. Also looking at the track record of these NGO groups, especially their accusations against African people, they have little to zero credibility. The story in fact sounds like a propaganda news by diamond dealers trying to garner support from the west for some sort of invasion.
Finally, spending $2b in a small country like Zimbabwe will spur economic growth even if it was spent on the police and military, I don't care if the money was squandered digging and filling holes all around the country.