There's no way to gerrymander a border that splits America into two geographically distinct countries with strong majority representation of whatever binary you think exists. By that I mean, there are communists in Kentucky and Proud Boys in Hawaii. If we seriously tried to split in two, it'd be like post-colonial India and Pakistan with worse weapons.
regardless, this idea is a distraction from the problem of wealth accumulation and the erosion of representative politics through private funding.