Provides that public school parent who objects to learning material or activity that parent considers harmful may receive voucher from school district to enroll student in nonpublic school. [...] An objection to a learning material or activity on the basis that it is harmful includes, but is not limited to, an objection that the material or activity questions, violates, or conflicts with the parent or guardian's belief or practice regarding sex, sexuality, sexual orientation, gender identity or expression, conscience, ethics, morality, or religion.