As much as possible. Exactly what government programs were they banned from using? Their children went to our schools, they got health care, used banks, in state tuition or lower for college, WIC, welfare, section 9 housing, unemployment and with no question asked taxpayer ID from the IRS they were already getting refunds they weren't entitled to. Criminey these leaches actually get more taxpayer funded benefits than American Citizens and legal residents.
Exactly. The illegal immigrants may have paid modest amounts of sales tax on purchases of consumer goods.
Probably not compared to the benefits they received.