There’s a lot to be said about “spiraling out of control”. You could argue it’s fair for everyone. But you could also argue that a country like China which is as big as Europe gets the same amount of green cards as Luxembourg. You could argue there will be less diversity, but then you’d be arguing that the French and the Italian cultures are very different from each other, but people from NorthEast India are the same as people from South of India culturally and ethnically.

Anyway, if we are so concerned about “not letting things go out of control”. A simple solution is also to set those country caps on the H1B program. There can be other solutions and the conversation can be a lot more nuanced but HN is not the forum for it when it comes to the topic of H1B.