Circumcision of infants is a vile practice that shouldn't be permitted, much like you shouldn't tattoo an infant. I am daily reminded of this symbol of a covenant of Abraham that I reject and want no part of literally cut out of my flesh. If circumcision is to be practised, let it be done among understanding adults like Abraham and Ishmael, not infants.
Yes, it should be banned. It is cruel to treat a newborn this way. If someone wants to do it anyway, let them take their baby to another country. It does not violate a person's religious belief as long as they can take their baby somewhere else.