Do you not think that Maimane erred by shooting off in Public before he engaged his brain.... and now won't back down, setting up a 'kangaroo court' to deal with Zille comprised of unknowns (Bteytenbach prosecuting).
Maimane should choose his battles carefully. 
Tell me Rodney, where does it ever say that Zille must clear every comment she makes with Maimane and the DA Politburo?? .... I see now you are suggesting below the DA should take away her 'Twitter Account'... how very democratic! 
I don't know either what you mean by 'genuinely racist'.... what is that in the context of Zille.