I don’t know how the Green Card process works but I hear a lot of accents on the VHF radio nowadays. Inquire Big Man we would love to have you.
The government knows there is a pilot shortage and the last thing they want is grounded airplanes and overpaid pilots so hence I believe a lot of overseas pilots are coming to America.
Every US airline has huge retirements so now is the time to join and the contracts are only going to get better. Contrary to what is sometimes posted here not all airlines are going down.
Good luck.