I don't know about GTA, but Sim City is certainly closer to real life than Dwarf Fortress.
I agree with the person you're replying to: having the "final solution" in a city management game would be extremely unpalatable to say the least. We do not expect mayors and city planners to behave like that.
I'd actually love to see a game going in that direction. If you try to set up some evil scheme for dealing with homeless, you'd have riots on your hand and citizens storming with guns into your office.
Or say, you decide to create a police state, with full surveillance and all the like. You see everyone is happy... unitl the whole thing goes to hell - because people weren't actually happy, your metrics just were wrong.
I don't think this is possible in a mainstream management game, for the same reason a mainstream extermination camp simulator is not feasible. Just imagine the outrage if Maxis did this.
Edit: I realize making feeding homeless illegal and outright killing them is different -- But the tragedy of these laws is palpable. Those that vote for them either grossly misunderstand the issue, or would simply do whatever they can to get rid of homeless, or both.
I agree with the person you're replying to: having the "final solution" in a city management game would be extremely unpalatable to say the least. We do not expect mayors and city planners to behave like that.