1- Its correct that its not easy to get a residence permit, but it is a lot easier if you are entering from the US/UK than if you are coming from Sudan.
2- I don’t expect people leaving the US, to want to live like they did in the US. So assuming that they would want to create a similar life outside the US is kind of childish, and not even possible in most countries.
That said, it’s a figure of speech. You’re taking it too far and too literal