Right. So what's been done about this African court since 2009, and how many Sudanese citizens have died while you twiddle your thumbs?
The ICC may not be perfect, but it's there doing what you've failed to ever do.....stop Africans from being slaughtered by Africans! 

As for pulling out, good luck! You won't be in power long enough to get that done and that's a great thing, because citizens of South Africa rather like having international protection against government, especially one that's turned out as corrupt and criminally inclined as yours!