How IS circumcision of newborns legal anyway?

there is a huge lack of consistency seeing that a tattoo is only a surface colouration of a patch of skin whereas circumcision cuts off and removes a section of extremely sensitive skin from a particular delicate part of a baby , if a tattoo earns a parent 3 years in jail i would suggest allowing a child to be circumcised should earn the parent and surgeon 20 years in jail each. circumcision causes infections too and 120 baby boys die every year from circumcision complications , there parents are victims too