On the Fact that (According to Journalists, Ilana Mercer and Philip du Toit) the Ratio of Voters to Taxpayers in South Africa Is a Mind-Altering 11 to 1

Please, explain to me how this is (to use the modern-day lingo) "sustainable"? It certainly doesn't sound sustainable to my mind (the fact that when the bifurcation between those who pay taxes and those who consume them gets too obscene, civilizations tend to erode and ultimately crumble).