getting a greencard isn't impossible
Good luck with that...
Regarding other threads,, most of them are 3-10years old,
Fact still remains---If you choose to work for free or for "food" as you put it, then you do us all a dis-service. In 15 years time, if and when you have a job as a pilot, and have a family to support, you will understand and despise people like you who come along and offer to work for free.
today's job availability has changed drastically the last few months
In what way? Other than there being a ton of CFI's looking for work after the collapse of Silver State, which was over a year ago.