You can’t consent to a religion if leaving it causes you to be shunned by your family and community.

Then, according to that logic, not a single person who believes in a mainstream/typical religion is consenting to it, because many families and communities will shun you if you leave their religion. That is a social construct and may or may not happen depending on many factors.

Are you specifically talking about the concept of apostasy in Islam and how it’s supposedly punishable by death?