how about by sending them money? or by working to change the political climate in the USA and reverse any removal of family reunification?

if my parents had to leave that's pretty much what i'd do, although they'd go to mexico. i know not everyone is from mexico and there are worse places you dont want to return to but they'd leave their possessions to me, and go back to family in mexico; i'd try and either pay off the house or sell the house and send them money and continue to stay in the US hoping to change the laws which forbid them from returning.

12 year for the right to vote is bullshit but you can still do other things to help change the political climate.