It would be less of a problem if federal law did not mandate that underrepresented minoritiesTM had to have their own safe spaces qua congressional districts.
If Dems hadn't used minorities to maximize their seats without giving some of those seats to the minorities there wouldn't be the federal law. When I saw some of the DKos maps in the last cycle, it looks like there are still many partisans who would return to that style of redistricting if given the chance. As long as there is bloc voting based on race or ethnicity it will remain an issue due to the 15th Amendment, particularly given SCOTUS interpretation that the rights are not merely to cast a vote but to be able to elect representatives of their choice.