I commend this essay by Louis Markos in Touchstone for reading by all.

In the essay he delineates and destroys the heresy at the core of Christian advocacy for same-sex practice: a liberal misunderstanding of Jesus as embodying absolute inclusivity.

Note that Christians who insist on the sanction and blessing of same-sex “marriage” are not saying: “Well, society’s changing, and if the Church doesn’t keep up with the change, she will be looked upon as old-fashioned and irrelevant to the concerns of today.” No, they are saying something far more radical and troubling: “ Because we are Christians, we should be in the forefront of those who are currently fighting for gay ‘marriage.’”

How could those who call themselves Christians take such a position? The answer is that many have accepted what I must call, without apology, the heresy of inclusivism. Though rarely stated so baldly, this heresy posits that at the core of Jesus’ life and teachings is a simple, non-negotiable message of absolute love, tolerance, and inclusivism that should determine every aspect of the faith. Any belief or practice that jeopardizes this message is to be rejected, even if it is stated clearly in the Bible, accepted by the historic Church, and believed by nearly all Christians since the founding of the faith. Any statements or doctrines that portray Jesus as exclusivist or intolerant, even if spoken by Jesus himself, must either be rejected or reinterpreted to fit in with his “true” message of inclusivism and tolerance.