I disagree. The republicans in any number of states are being disenfranchised in the representative assembly that is the electoral college.
The democrats have been using the cities for decades to build their power, hence the outrage in the possible changing of title IV of the Voting Rights Act. Literally all of their constituencies live in the cities. Just as an example, if the democrats take Texas as they plan to do, they would have 36 electoral votes, while if Texas reallocates its electors they would only get 14 (assuming all the districts would vote for president the same way they voted for congressmen).
The Electoral College needs to be re-balanced. The population centers are over-populating the body.
What you don’t understand is dividing Texas without dividing California ensures that Republicans lose 14 seats, (a swing of 28, or almost 5 percent of the electoral college).
Sure, if California were divided, this might be in the cards, but until then - it would be electoral suicide for the Republican party.