In fact the lean beef issue is so great for the US they import lean beef from countries like NZ to mix with their excess beef fat for the beef burger industry which is monstrous in the US.
Australia you mean? Shouldn't that be the other way round? It's New Zealanders who emigrate to Australia, rather than vice versa. But you are correct; both countries produce the most excellent beef. I can see some very tasty looking Wagyu X Murray Greys through my study window right now. Yummy! :-)