Which examples are you not aware of? African sectarian violence largely split over religious lines? Middle East and its constant tribal warfare often among sectarian and religious lines? The fact that most christian sects of middle east and north Africa adapt the same rules as other religions in terms of genitalia mutilation?
Or are you generally unaware that most of the "religious" customs of today are in fact old customs that weren't religious but converted to religious as religion of choice gained ground to ease conversion? Take everyone's favorite christmas for example. In the bible, Christ was born in spring. We celebrate his birth in the day when Romans celebrated winter solstice, as decided by Church in 4th century to assist in conversion of Northern Europe to christianity.
Same thing for most of the customs often painted as "islamic" by our nice media. Female genitalia mutilation? Middle Eastern and North American tradition. Practiced by almost everyone in the region, regardless of religion. Black clothes that cover hair for women? Middle Eastern (pre-islamic) tradition. Christian copts practice it for example.
Essentially the main reason why christianity is currently less oppressive in general than islam is the location of most of the converts. I.e. it's not the religion - it's the local culture and its level of social and technological progress in these times. Go back in history about a thousand years, and you'll see the polar opposite - Middle East being the cradle of modern Western Civilization inheriting most of the scienticfic, mathematical and art from Rome's collapse and Europe stuck in religiously extremist dark age with many nasty barbarian habits such as witch hunts being adapted into christianity.