The unbeliever I expect it from. The bible is not their authority so I cannot blame them. They want what they want because they want it so God lets them have it.
But the Christian I expect to be following the Bible.
And is this a salvation issue?
They are against adultery, and fornication, bestiality, and child sacrifice, but homosexual acts are now OK?
Is condoning these acts a heresy or not? At what point do we determine they are so off the rails and relegate them to unbelieving status?