On that day, he taught that human biological sex is determined by the 23rd pair of chromosomes and that XX chromosomes are female and XY chromosomes are male, that sex must be between a man and a woman for the perpetuation of the species, and that life begins at conception. Professor Varkey says that his record at St. Phillip's College has been exemplary. His lawyers said that the school sent him a "Notice of Discipline and Termination of Employment and Contract" letter stating that the school 'received numerous complaints' about his 'religious preaching, discriminatory comments about homosexuals and transgender individuals, anti-abortion rhetoric, and misogynistic banter," although his record has been exemplary.

A biology professor at a Texas community college has claimed he was fired for "religious preaching" after he taught a lesson about how sex is determined by X and Y chromosomes.

Johnson Varkey, who has taught at St. Philip's College in San Antonio for 20 years, claimed he was accused of "religious preaching" and let go after he discussed the human reproductive system during a lesson on Nov. 28, 2022, which led to four students walking out of the lecture hall.

The First Liberty Institute, a Texas-based nonprofit Christian conservative law firm, last week sent a letter to the school on behalf of the veteran educator demanding his reinstatement.