1. These racist districts are mandated by the Voting "Rights" Act, and
2. They can work to actually help Republicans by placing a high percentage of liberal racists in such districts, leaving the surrounding districts much more fertile ground for good representation.
So for every insane monkey like Jackson-Lee we get a couple of good Republicans in adjacent districts. Newt was smart enough to see the good in this liberally-madated racism back when the VRA was pased in 1992 and it did help get the R's in control of the House for a while.
I agree...on the one hand, you want to see fairness in disctricting...but if they want to concentrate their liberal voting bloc into a single district, then we’ll take it! (from a strategic perspective)