Yep, blue states just have sufficient urban populations to offset the red parts while red states do not.
Also, the whole concept of red states vs blue states being lessened might be another bonus in getting rid of the electoral college. Utah is a red state but over a third of the population voted Democrat. SLC is a liberal city with a thriving LBGTQ community but you would never guess it given how “red” the state is and the reputation it has. If Portland were smaller, a state like Oregon would likely have quite a bit different rep. You can’t just divide the country into regions to solve anything, it’s just not where the partisan divide is right now.