The main difference seems to be that when we have history and art exhibitions dedicated towards the unrealised visions of white people or successful comic book films featuring [mostly] white characters or reconstructions of Anglo Saxon earthworks which were pretty unimpressive compared with neighbouring and preceding civilisations, nobody claims that its a "subversive" effort...
Not sure where you're getting the idea that Mugabe is fondly remembered or that Ian Smith wasn't a racist either tbh