Lostmybaubles you are being either purposefully misleading or are talking about things you have not researched.
Misquoting the quran in such a way is why some people insist on calling islam "the religion of peace" when actually it is inherently very violent.
You think the quran says this, and to be fair it is very misquoted....
"The Quran clearly states if you kill an innocent person its like you've killed all of mankind and if you save an innocent person its like you've saved all mankind."
The quran actually states....
"[5.32] For this reason did We prescribe to the children of Israel that whoever slays a soul,unless it be for manslaughter or for mischief in the land,it is as though he slew all men; and whoever keeps it alive, it is as though he kept alive all men; and certainly Our apostles came to them with clear arguments, but even after that many of them certainly act extravagantly in the land."
So it's only applies to the children of Israel and it states it is fine to murder someone who is creating mischief in the land...
So, strictly speaking, verse5:32is only applicable to the children of Israel (the verse says it). Any way, to be fair, we shall ignore this limitation and concentrate on the wider meaning:
On the surface of it, the first sentence (Islamists often quote only the first sentence, conveniently hiding the next sentence) of verse5:32seems very munificence and non-violent. What does the next sentence say? It says clearly that even when Allah sent His messengers many people disbelieved them. Muhammad was one of such messengers, the best and the last. Therefore, “those who disbelieve in Muhammad and Allah (i.e. the non-Muslims) are the transgressors. Evidently, the non-Muslims are the mischief-makers on earth. Logically, these non-Muslims do not fall under the purview of the merciful provisions of verse 5:32.In simple language, this means: verse5:32is applicable only to the Muslims
I hope this clears that up, also your statement that the bible is more violent is nonsense, that's without getting into the fact that the old testament is hardly referenced by any christian groups due to the enlightenment and the new testament, an enlightenment that Islam will never have.