I feel for your childhood damages by those hopelessly ignorant, destructive parents. I feel so sad that our rotten parents FAILED to allow my older brother and me to be good, respectful and LOVING friends from day one but they didn't so my brother first of all saw me as the ENEMY and then I eventually turned from loving and respecting him to become his ENEMY as well while our pathetic parents looked on with humor or INDIFFERENCE to our little toddler skirmishes! Has your brother ever realized that BAD parenting caused his bad attitudes towards you?
IMO, bad parenting is the CURSE of the world and is the underlying cause of literally ALL human misbehavior and cruelty.
God blessed the child who has adequate parents!
I'm very sorry for how you were damaged as a child and wish you much success in turning your early injuries around and maybe rebuilding a good relationship with your brother so your life will be way better from now on.
good luck,
jim - ACOA