South Eastern states, Wisconsin Colorado have taken a look at gerrymandering and have diagnosed it a problem, a problem created by Republican consuming power
Suits have been filed in almost every State where Republicans have Governer control and mostly because their own State rules have been ignored, abused or flat out changed unilaterally.
The Supreme Court has jumped in on several cases and thrown out R’s redistricting as obvious partisanship as recently as this past summer.
Partisan Gerrymandering serves the party in power as a political tool to suppress and deny populations their right to community decisions which benefits their community. And in the large picture to move or keep a party in power.
Otherwise it wouldn’t be done.