The two parties and winner take all system probably create what we see now where you want to have extreme positions to get elected, but only extreme enough to still win 50% + 1.
It's like we're optimizing for agreement among the smallest majority possible.
There's no incentive to win 90% of the vote.
If your power as an elected official somehow increased in proportion to what % of the vote you got I think we'd see a lot more unique solutions to common problems rather than blaming the other side.