How do Christians explain commonalities between their religion, other major faiths and obscure isolated tribal belief systems?

Many belief systems share common themes; an afterlife, rebirth, bodily mutilation and sacrifice. To me this suggests a shared origin either in history or storytelling (Abrahamic faiths) or that they were all "made up" to appease basic human fears or death and to cope with grief. Taking these similarities into account how do Christians dismiss other beliefs and accept their own as the one true religion?