I Have Family Problems

I have posted this problem before. I'm in a relationship with an Indian Christian. His family is both traditional and religious. My parents are separated and everything opposite of religious. Dad ignores us. My sister don't want a marriage and rather have a kid through surrogation and brother is autistic. My boyfriend wants to marry me but I want his parents to accept my family problems first. And that I want to move away from India. I already told him everything he hadn't told about this to his parents yet because right we're both facing issues in our careers. He will tell them once we're ready. But I'm not sure about this as I know how most Indian parents are ignorant to others problem. I don't know if I can handle the pain if they don't agree with our marriage.