If you fought for Cecil Rhodes, you aren't a hero.
White Supremacists vs. Communists. Not really something anyone involved should be very proud of. But that appears to have been after Rick left. He would have been in the British colonial police, which was a pretty ugly position to be in but the British government was also attempting to ensure that Rhodesia did not secede as an apartheit state.
I'd say nominal communists. Cold war liberation politics was...complicated. British colonial authorities were allied with the west by default, so the "liberation" movements could only get funding, training and arms from communists. In exchange, they would have to show outwards signs of supporting communism, but that was not what they were fighting for.
Marxism was quite deeply imbedded in the IRA platform and became the doctrine of the "Official IRA" once it split off from the parent organization.
Which is pretty much what did happen in '65?
https://en.wikipedia.org/wiki/Rhodesia%27s_Unilateral_Declar...
The Rhodesian Selous Scouts (the new, mixed race, elite force responsible for 3/4 of the enemy casualties during the Bush Wars) made the decision to go after the "moderate" party (ZAPU, led by Nkomo), weakening his troops shortly before the final election (where all Rhodesian troops were called back to the barracks and guarded by British troops).
They correctly expected Mugabe to win the election, since he could take over the countryside with no opposition, and the plan was that he had such an awful reputation that the British would not allow the election result to stand, whereas they'd be fine with Nkomo. Unfortunately, they underestimated a. how much the British were annoyed with Ian Smith and UDI and b. how little they cared about Mugabe's true nature, and generally about the fate of the "natives" in their own colonies, just wanting to wrap up the whole thing as quickly as possible and stop being the centre of global attention.
In fact you can trace Mugabe's rise to the assassination of the moderate, educated, highly competent leader of ZAPU and later ZANU, Herbert Chitepo, a national hero and the country's first black lawyer, by a former British SAS soldier working half on contract, half out of ideology for the Rhodesians. The assassination, which was followed by Rhodesian disinformation to make it look like it was a faction war, was supposed to seed dissent within the enemy camp. Instead, Mugabe took advantage of the chaos to emerge as the leader and the rest is history. For all we know, Chitepo could have been the African Lee Kuan Yew.
The rise and fall of Rhodesia is one of the most fascinating parts of 20th century history and I really recommend getting acquainted with the period. If anybody has ZANU/ZAPU/ZANLA-side sources, I'd love to read them as I could find very little on the subject and much I heard from that point of view was from Zimbabweans whose family members were fighting on that side of the conflict.
Cecil Rhodes died in 1902?
"Who's there to blame" but not "What's there to do".
What's there to do with Zimbabwe now? And other post-decolonization failed states?
As for what will actually be done, that's fairly easy to guess: in all likelihood nothing, unless Zimbabwe somehow starts to threaten western interests.