Original sentence: A US-born child cannot in fact sponsor his/her parents for legal immigration to the United States (until he/she becomes an adult), and illegal immigrant parents do not gain any additional legal rights based solely on the fact that they have had a child born in the US
Edited sentence: A US-born child cannot in fact sponsor his/her parents for legal immigration to the United States (until he/she becomes an adult), and illegal immigrant parents in theory do not gain any additional rights based solely on the fact that they have had a child born in the US.However, in practice, they become much harder to deport.If both are deported, sometimes the parents will even leave the children behind rather then bring them to Mexico or wherever they are deported.If the parents are deported or threatened with deportation, they typically receive far more support from groups who cater to illegal aliens who think it is cruel to deport illegal aliens who have US citizen children.In such cases, if one parent is deported, the other stays behind in the US with the citizen children