Districts are drawn....differently....in the U.S.
True, but that doesn't make them automatically less representative. US House districts are a hell lot more representative than say, Japanese or Manitoban districts.
As they are drawn now and as they are always going to realistically be drawn, it's horrendously unrepresentative. Yes, in this magical fantasy land where Republicans and Democrats actually come together to caring about electoral reform, proportionality, and open election laws, it could work, but that's not going to happen. As it stands now, doing things the Maine-Nebraska way would heavily stilt the election against the Democrats.