This is a tough call. The child hasn't done anything wrong, and may benefit from hearing the Catholic Church's viewpoint on homosexuality, which he/she certainly won't get at home or in a public school. But, will allowing him in then serve as an entrance for the parents to scream to the state or ACLU about homophobia or intolerance as soon as a teacher brings it up? Also, I can see the other parents' view that allowing the child in is seen as a tacit approval of the lifestyle; but I can't understand why two homosexuals would choose to send "their" child to a Catholic school (or any denomination other than Anglican/Episcopalian). As usual, a child will be caught in the middle of adults' problems.