 Those who argue that gamete donation does not result in parental responsibilities find fault with causal accounts of parenthood. One prominent move is the ‘too many parents’ objection. The core of this objection is the claim that causal theorists have no principled way to distinguish members of the causal chain who acquire parental responsibilities from those who ought not be ascribed such responsibilities. As a result, causal accounts ascribe parenthood to too many people. 