In 1982, the Supreme Court rules in Plyler v. Doe , 457 U.S. 202 (1982), that public schools were prohibited from denying immigrant students access to a public education. The Court stated that undocumented children have the same right to a free public education as U.S. citizens and permanent residents. Undocumented immigrant students are obligated, as are all other students, to attend school until they reach the age mandated by state law.
http://www.americanpatrol.com/REFERENCE/PlylerVDoeSummary.html
"In 1982, the Supreme Court rules in Plyler v. Doe , 457 U.S. 202 (1982), that public schools were prohibited from denying immigrant students access "
And thus the local tax payer is forced to fund