To be clear, nobody is saying that circumcision is always a human rights violation. Only when it is done to a child who cannot consent. If an adult were to choose to get circumcised then that would be his right.

you cant take away peoples religious beliefs if they arent being enforced on people who arent in that belief.

This is exactly the problem. Children are typically circumcised shortly after birth. They are not part of any belief and cannot even speak, let alone consent to something as serious and irreversible as a circumcision. It is being forced on them.

People are allowed to have and practice their religion. They should not be allowed to force their beliefs on others, even their own kids.

If course this all ignores the fact that many circumcisions (in the US at least) are not performed for explicitly religious reasons.