Islam teaches that EVERYONE is "born Muslim." So much for having to "accept the Muslim faith."
As for "who has the right to judge"? Christians do. We are taught in scripture to "...judge with righteous judgment" John 7:24, and “By their fruits ye shall know them.” Matt. 7:20
Every one of us makes judgment calls every single day. Otherwise, we would walk out in front of a bus or drink sour milk on a regular basis.