If you do not share the universities' values, it could be a big mistake to send your children to college before they are intellectually and morally prepared for the indoctrination-rather-than-education they will receive there. Therefore, prepare them morally and intellectually and, if possible, do not send them to college right after high school. Let them work for a year, or perhaps travel (for example, given the antipathy to Israel on campuses, a trip to Israel would be both morally clarifying and maturing). The younger the student, the less life experience and maturity they have, the more they are likely to embrace the rejection of your values.