These days it seems almost impossible to take the politics out of issue discussions. But for a minute, let's try to take the politics out of the gerrymandering debate.
I'll try to take the politics out by noting that both Republicans and Democrats try to skew districts in their favor. When given the chance, legislators will take that chance. Last month, the Pennsylvania Supreme Court struck down the unfair maps that Republican leaders drew; also last month, the US Supreme Court heard arguments about the unfair maps that Democrats in Maryland drew.
The issue here is power, not party. Quite simply, voters need to be choosing their legislators; legislators should not be choosing their voters.