> If we were to uncap the size of the House of Representatives, and instead change so that each district contains 50k people (or close to it), we would have roughly 7k representatives in the House.

Nice and proportional, but a completely unwieldy number of representatives. 700 reps for 500k people each would be more manageable.

(of course, that means very little if (a) they're only from two parties and (b) all 7k districts are gerrymandered six ways from sunday)