Referencing AL, Shine says gay couples should not be told by the Church what's moral, but like civilly remarried couples, should be allowed to decide for themselves. "[T]he Church is supposed to help form, not replace, consciences, and it is to respect people's conscience decisions once made," he insisted. He is correct the Church is no one’s conscience.
However if one decides to live as a homosexual that person has decided to reject Christ.
If one rejects Christ the Church has no choice but to exclude that person from the body of the church.