Jews and school choice

Why would North American Jews oppose school choice? It seems odd that, at a time when intermarriage is at an all-time high and Jewish organizations are warning against assimilation, some of these same organizations are opposed to vouchers enabling parents to choose their children's schools. Fortunately this appears to be changing as indicated in the following articles: "Jews and School Choice"; "The Many Faces of School Vouchers"; "A New Age for Jewish Day Schools? The U.S. Supreme Court Upholds the Constitutionality of School Vouchers."