I wonder if he hangs out over at the exjw sub-reddit? There are lots of people who are in a similar situation. He is lucky to have you in his life.
@TheListener
Cognac, can you help by showing your nephew how to look for scholarships online? Also, his high school probably has lots of scholarship information and most high schools use a website that keeps track of their SAT scores and lets them search for potential schools. Maybe you can convince his mother to fill out the free FAFSA form which would help him quality, maybe, for financial aid.
YES! He will understand that this is his ticket to freedom.