> * In a just society, your opportunity in life should not depend on being lucky with who your parents are.
The vast majority of people are raised by their birth parents which means 0 luck was involved. You are here due to their actions and are who you are due to their combined genes and situation.
This is a very cogent observation that I'm afraid is going to go over many heads. Children and parents are intrinsically suited to each other by genetics, shared environment, and other empirical factors. Societal and legal reasoning that asserts a child as a Platonic form cannot in fact benefit the singular development of that child.