I'm not opposed to the measure but it would only work nationally with an independent redistricting that didn't take into account any partisan metrics, including competitiveness/balance.
Even an independent redistricting commission doesn't always lead to proportional results, as you should know based on your avatar.
Who said the reason for mentioning that was proportionality? Fair enough if that's your goal. If I wanted that I would've proposed a proportional allocation. The point was geographic representation, but adding any partisan metric undermines that main goal. Partisan involvement in redistricting would equally undermine that. No need to be snarky about things.