I would become a prostitute for a green card never mind 10 million, give up church,never started with that.I wouldn't have a problem with a race change either. I would not kill or abandon my family for any sum, or put my kids up for adoption.
It reminds me of the age old which would you rather lose, sight or hearing. For me it would be sight, could not cope without my music.
I would leave my spouse, get the 10 million, buy myself an American husband, get green card, then go back to husband, after having given new husband most of the 10 million.
Would divorce new husband, get green cards for my kids and then when the oldest could, would get him to sponsor his father's green card. Just in case of any suspicion I would keep some of the money to buy a second house where I would allegedly live incase of suspicion.Meanwhile I would of course be back with husband.
If you think that's complicated you should hear some of my other schemes for a green card.