I don't intend to stay there forever. This is intended to be a three year affair, maybe four. My degree will be in data science or data analytics. After I graduate, I'd like to live as a digital nomad of sorts, but if not, I'd go to where I'd do the best. When you say that I could make more working for myself, what would be an example of such a situation?
Re. marriage - My guess would be that if my spouse knows I have US citizenship, the expectation would be to help him get a green card. That is how the US gov't would find out. The reason I would lose my benefits: that is how SSDI works; I can't do anything about that.
Well, if Argentina is not your dream place, you may not be interested to marry a local then, because you would have family here you would be tied to.
As far as I can tell, this website / service has strict rules on NOT giving detailed financial advice (I have no idea what the exact rules are, or where they can be found ???) and having never read the rules, it seems to me that giving career advice would be wrong as well. So, to that end, I would say, in general terms, it is on your shoulders to assess you abilities, skill set and talents ... then consider how best to put them to good use.
Lastly, please don't insult (I am not sure if that was your intention, but that is how I took it.) the good people of Argentina by thinking you are a means to a green card or citizenship for someone. The vast majority of Argentines are every bit as good as anyone else anywhere in the world. I can attest to that.
Double lastly, life has taught me that when a person values their money more than their relationships, it's a person I don't care to know ... so with that, I will SINCERELY wish you well, but refrain from interacting with you from this point forward. Sorry, you rubbed me the wrong way with that comment.