Citizenship isn’t as valuable as the ability to make money.
Well, it is true that American history is chock full of people who came here for the sole purpose of making money.
I kind of like the fact that there was, at one time, so much freedom that we couldn’t keep out people who came here to make a living and get ahead in life.
Sure, lots of people came due to hunger, repression, etc, but a lot of people made a choice to come here not because someone was going to take care of them, but because they would be free to take care of themselves.
I find that very powerful and compelling.