You're *NOT* addressing the reasons. You're just telling us that in a pretty disney land that it's great!
What about terrorists, drains on the resources, HUGE mass immigration, cultural problems, security concerns and so on. I mean seriously - it's not about "Waah, I don't want this guy from China here" it's about "I don't want 500 million chinese here tomorrow because there's no room!".
Why would you choose to live in a 3rd world country if you knew you could go to say New Zealand tomorrow, stay as long as you wanted, all you needed was a plane ticket? You wouldn't! That's just one of my points.