In a functioning system the U.S. Supreme Court would step in and check the power of all legislatures to gerrymander, ending the tit-for-tat redistricting, but this Court has instead chosen to fan the flames by reducing barriers to gerrymandering. (whether racial or political party based)
I wouldn't be surprised if they strike down independent redistricting commissions in a future case given their recent decisions on independent agencies. The 5-4 decision in Arizona State Legislature v. Arizona Independent Redistricting Commission likely wouldn't be decided the same today given the changes in the court's composition since 2015. So it goes.