Which culture is better? This question is more for liberal Christians.?

Firstly Christians cannot be liberal if they actually follow the Bible. The violence in the Bible is sickening and the exact same laws in the Koran can also be found in the Bible. The west is now secular so it has conveniently forgotten years of forced conversions and discrimination against women, homosexuals and racial and religious minorities Christians have waged violent wars like the crusades and Nazi Germany who were just following Christian teachings. Islam has descended from Christianity yet their violence has appeared in the modern context.It is not a patch on Christian violence trust me.