FUQUAY-VARINA, N.C. (WTVD) -- A Wake County high school teacher is under fire for comments he made in an article published online comparing the school where he works to a concentration camp.Fuquay-Varina High School biology teacher Ray Fournier later apologized for his comments in an updated version of the article that promotes his book, Education Reformation Fournier has been a public school teacher for 13 years. Despite that, his book urges Christian parents to "rescue" their children from public schoolsHe never mentioned Fuquay-Varina High School in the article, but said the school where he works is a "concentration camp dedicated to the spiritual death of those imprisoned behind these walls."Fournier writes that public education is not religiously neutral, but rather deliberately indoctrinating students to turn away from God and moral and ethical living.He cited a couple he knows whose daughter came out as a lesbian after attending public school for one year."I warned them about the spiritual dangers of public education, but sadly they ignored my warning. It was as if their daughters where [sic] placed inside a spiritual gas chamber. It didn't take long for the poison to take effect. Within a year's time, one of them even became a lesbian. My heart broke each and every time I saw her walk around campus with her girlfriend," Fournier wrote.Fournier apologized after receiving backlash for the article on social media sites and online comments, but some parents and former students are calling for him to be disciplined or even fired.Wake County Public School System spokesperson Lisa Luten tells ABC11, they are investigating complaints against Fournier.Fournier has not responded to ABC11's attempts to reach him for comment.In his online apology , Fournier writes: "In retrospect, it was not wise for me to use the analogy of concentration camps and the holocaust to illustrate the loss of millions of children from Christian homes to the world."