They make stickers for your situation: https://i.etsystatic.com/40011018/r/il/1b4b8c/5018794935/il_794xN.5018794935_ihbt.jpg

Rural states have a large advantage in the house, huge advantage in the senate, and of course significant skew in the electoral college. And much of it comes from compromises with slave owners.
Abolishing the EC would not mean rural regions get completely ignored, not only would they have reps and senators still courting their votes (and campaign donations), civilized countries with functional democracies have multiple parties. A rural party would show up, which could court voters in all rural areas, instead of only in swing states.