Original sentence: It is generally used as a metaphor, implying that, as a U.citizen through the legal principle of jus soli, said baby is lodged in the US and the baby's relatives--tethered to the child by their relationship--may find immigration for relatives through facilitated through family reunification clauses in immigration law
Edited sentence: It is generally used as a derogatory reference to the supposed role of the child, who as a U.citizen through the legal principle of jus soli, may facilitate immigration for relatives through family reunification