I'm not going to be proactive about my brother's college financial aid process.
Could you tell more about why you're not going to do that?
I just don't care about my brother's financial future.
Securing funding for higher education is a complex process and your brother is going to need help navigating that process. If your brother can't receive financial aid, then he will not be able to go on to university and his future will be jeopardized. You should help out your brother so that he can become successful in life.
He needs to learn to do things for himself. I am not a bad brother just because I am not helping him.
Your brother is your family and you have a responsibility to support him when he needs help such as with the financial aid he needs for college. You would want your family to help you if the roles were reversed, so help him out.