Democrats who argue in favor of redistricting commissions ought to consider that their votes remain less efficiently distributed than Republican votes, even as rural margins become more lopsided.
A "neutral" map - a term that ought to be abolished, as there's no such thing as neutrality when it comes to redistricting - will therefore tend to disadvantage Democrats, whose voters are naturally packed into a smaller portion of electoral districts.
I mean it is true that Democrats probably have worse distribution but it isn't that bad for Democrats. States like VA are equally distributed with VA 9th and 6th = the 8th and 11th and states like Texas just being awful for the GOP along with California having so many districts but also being so Democratic that Democrats control almost of them.