The only issue I'd have with the movement now is that it still promotes the Christian faith, but that would not put me off enough to discourage my son from going.
Not any more:
We operate from the grounds of a Church, but have nothing to do with them any more than the Yoga group and the Judo club that we share the facilities with.
We do have a couple of church based groups locally, one is Jewish the other are Sikhs, both have non-religious members.