This law requires all private schools to teach and run their administration solely in English:
Section 189:19 English Required. – In the instruction of children in all schools, including private schools, in reading, writing, spelling, arithmetic, grammar, geography, physiology, history, civil government, music, and drawing, the English language shall be used exclusively, both for the purposes of instruction therein and for purposes of general administration. Educational programs in the field of bilingual education shall be permitted under the provisions of this section with the approval of the state board of education and the local school district.
This is a violation of the natural right to conduct one’s private and personal business, including the educational of one’s children, in whichever language desired.
I suspect there would be no significant public objection to replacing “in all schools, including private schools” with “in all state-run schools“.