What complicated about thier life? They have a huge new house in the USA, many new vehicles mostly trucks, they have 5 horses they keep at ranch, they have kids and family and life, Where do you get their life is complicated? They all make pretty good money working in Texas. They take yearly vacation usually to Florida. They live a pretty darn good life here. I suspect most of the sons make more per year than you do, since I employee them.
To me it seems pretty easy to get 'Your Papers" going thru USCIS, seems as if they have many loopholes and waivers geared toward people who came here illegally but have lived in the USA a long time.