How many of the people writing negative things has actually been to Africa? I'm going to say zero.
A trip to Victoria Falls doesn't make you an expert, junior. I've lived and worked in Africa over a period of many years. Zambia is one of the country's I have had contracts in. The reason why it is as well off as it is can be attributed to its mineral wealth. If the government weren't so corrupt, the population would be at least twice as wealthy as they currently are. It is one of the few countries in Africa that can export energy, and China has been one of its main trading partners for years.
And yes, it is a shithole. Especially if you are a part of the LGBTQ community.