The question is what would become the 2nd party to compete with the ANC. I just don't see the DA winning 25, 30, 40% of the vote. Maybe it'll be "Kill the whites & take their land types" vs moderates.
I think the DA could definitely manage 25% or 30% of the vote. Coloured voters outside of Western Cape are loyal to the ANC now, but it's hard to see that continuing for long, and the DA is much more natural home for them than the likely other alternatives to the ANC (either some sort of black nationalist party or an explicitly socialist party). Winning a significant portion of the black vote is unlikely in the medium-term, however.
