No it is not up to Rowan Williams to decide who believes enough. But it is up to him, as a minister of the faith, to point out where he thinks people are going wrong. If someone wears a cross and it supports and upholds them in their faith, then his words are not for them. If they are using symbols as a substitute for faith, then his words are a challenge.
Incidentally, he has just announced he is stepping down as Archbishop of Canterbury in December.
If they are using symbols as a substitute for faith, then his words are a challenge.
We don’t know what’s in peoples hearts.
(I can’t believe he dropped a bomb like this and then announed his resignation). It sound like Rowan Williams may be fighting some demons of his own.