That’s not how elections work in the US, 60/40 is not a big enough divide to undo a gerrymander. The majority of the liberal population lives in dense urban are

That’s not how elections work in the US, 60/40 is not a big enough divide to undo a gerrymander. The majority of the liberal population lives in dense urban areas and thus their votes get “wasted” as they’re reliably Democrats, while sparser regions which consist of the minority view get more representation compared to their actual numbers. Add to that the fact that many voters are single issue voters, so their opinions on different policies don’t end up amounting to much. So even if some policies are popular overall, they need to be popular enough to overcome these things to form a durable coalition that advocates for them in the halls of power.