There needs to be a referendum. I can't think of an uglier gerrymander in recent memory. Even the 2001 districts were much better than this.
I could get behind referenda in both Ohio and Maryland on their horrible maps. I can't agree with unilateral disarmament but we need some kind of counter-weight to the legislative impulse to do the worst they can get away with. It doesn't matter if it's a single-party gerrymander or a bipartisan protection scheme.
Maybe a constitutional amendment establishing a national redistricting commission like other countries?
So, Washington insiders can pick their own voters?
Alright... How about voters elect members to the commission through a national primary then? Republicans will choose from a slate of non-politically active Republicans, Democrats from their own slate, and Independents from their own slate. Maybe throw in a joint slate for all the registered third party voters to choose from too. And to prevent the influence of big money and self-funders, require that a majority of the members make less than 250,000 a year.