The only problem with that idea is that if the Democrats ever gained control of a State, they would gerrymander the State to ensure that the urban centers controlled more electoral districts.
For example, in Maryland, the RATS created a 7-1 gerrymander.
The 6th is particularly bad:
The Rats ensured that the very Conservative people in the panhandle of Maryland, who have zero in common with the urban filth in Montgomery County are controlled by those urban filth in Montgomery County.
Those western counties were talking in a serious manner about joining West Virginia a few years back.
Thankfully our state FL has gone more republican with a Republican house, Republican senate, two Fed senators, and a Gov. Now our new Gov has put two more judges on the states supreme court,