No matter how many times someone stands up with blood on their hands and says, "I massacred this Christian because you allow two people of the same gender to marry each other," it does not make it true.
It is time for those who see little or no theological validity in the blessing of same-gender partnerships to stop pitting the presence of God's grace in committed LGBT relationships against the "weak" consciences of Christians "over there" who supposedly cannot handle it.
There was give-and-take conversation instead of either a lecture or a sermon. Rowan Williams listened and spoke, spoke and listened. It was all about different people coming together and "getting to know you."