In addition to Ted's excellent answer as to why female circumcision is significantly different, you'd have a problem with Orthodox Jewish groups being unable to [practice their religious beliefs](https://www.bbc.co.uk/religion/religions/judaism/jewishethics/circumcision_1.shtml)

> According to the Torah (Genesis 17: 9-14), Abraham was commanded by God to circumcise himself, all male members of his household, his descendants and slaves in an everlasting covenant.

> The Torah (Genesis 16:14) also says: "Any uncircumcised male who is not circumcised in the flesh of his foreksin shall be cut off from his people; he has broken my covenant."

Christians are not required to be circumcised, but [many American Christians adhere to it anyways](https://en.wikipedia.org/wiki/Religious_male_circumcision#Christianity). Some parts of Islam practice it as well.

Since there is no long lasting harm to boys who are circumcised, this is one area  where they would be a strong push back from the US religious community at large if someone were to suggest laws to make it illegal. [Iceland faced a similar backlash](https://www.theguardian.com/society/2018/feb/18/iceland-ban-male-circumcision-first-european-country)

> One in three men globally is thought to be circumcised, the vast majority for religious or cultural reasons. Many Jews and Muslims fear the issue of circumcision could become a proxy for antisemitism and Islamophobia, pointing to similar tensions over religious dress and the ritual slaughter of animals for meat.

> Muslim and Jewish leaders attacked the proposal, while Cardinal Reinhard Marx, president of the Catholic Church in the European Union, said the bill was a “dangerous attack” on religious freedom. “The criminalisation of circumcision is a very grave measure that raises deep concern.”