Could it also not be asked whether there be a time at which point the vague notion of "tolerance" in the Anglican Communion becomes an idol?
When "tolerance" reaches the point where one does not want to label "sin" as sin out of fear of upsetting people, especially when one is putting one's own "values" over the words of Holy Scripture, such is far more idolotrous than desiring unity with those who do wish to follow Scripture on the matter.
It could, and it should.