Schools are often held to a higher standard in the United States under our existing case law. For example, the Supreme Court ruled in a 6-2 decision during the 1970's in a decision known as Runyon v. McCrary that a private school accepting no Federal money does not have the right to discriminate or deny admission to non-white students as it was so offensive to public policy, it could not stand in a free country.

There seems to be little difference between telling a gay child the same thing, discriminating against them solely because of an inherent trait.

We also don't allow private businesses to discriminate against people, even based on religious beliefs, in a significant percentage of states. A Christian bakery owner can't refuse to bake a Bar Mitzvah cake in many parts of the nation, by way of illustration. These laws have consistently been upheld as constitutional in the interest of public policy.

Besides, just because an institutional can legally get away with something doesn't mean it is morally acceptable to highlight it, criticize them, and demand change. It wasn't until 1990 that Augusta National admitted its first black member. That was perfectly legal for it to do. They were behaving in a way in harmony with their private members' beliefs on the inferiority of the black race. It was still wrong for them to act that way and society kept pushing until they treated everyone with dignity.

That's what we do in the United States. The end of desegregation. Women joining the work force. We're on the tail-end of that battle now with equal rights for minorities such as gay people. I'll bet a significant amount of money that within the next 15 or 20 years, it will be utterly toxic for any institution to attempt this sort of discrimination on the basis of a person's sexual orientation. You already can't keep a job at almost all Fortune 500 companies in upper management if it becomes publicly known you are even remotely prejudiced. Our cultural values have grown and we're a better country because of it.