8000 Muslims massacred by White, racist European non-Muslims. All Euro vs Euro

[WinterHold]

There were sick fucks among them, in one of the battles they won in Eastern Europe, they "sat on the captured Russian princes":


They were brute fucks, so I agree. Their brutality is "more of a terrorizing policy" than a "religious/cultural grudge".
You get the same with "Stalin" and in modern Arabia "Saddam Hussain": they are ruthless people who use ruthless means.

For mongols, execution without breaking the skin or shedding blood is considered a high honor bestowed upon the condemned.
 
Mongol’s conquest was brutal during the process, but mongol administration after conquest was singularly enlightened and high minded for the age.  Trade prospered as it had never done before and will not do again until the 1600s, all religions are tolerated and peaceful debate between creeds encouraged.  Administrative punishements were generally humane by the standards of the time.  Where mongols ruled the number of crimes punishable by death or mutilation was generally drastically reduced.   All together the mongol age contributed more to the later rise of the modern age more than might be supposed.

Though all historical references points to them "butchering whole cities" and leaving the scientists who they need alive to contribute more to their war machine. That's how they learned to build siege weapons and go through siege warfare.

Noticing their savagery is shown with the amounts of books they threw in the river after taking Baghdad.
Using scientists from defeated nations is an accusation Muslim empires are face with all the time -despite the gross fact that most scientists converted to Islam willingly or were born Muslim-, no wonder the Mongol empire didn't last, nobody was loyal to them.

Even the sons of the Khan fought with each other.

I don't share your opinion; as a matter in fact I think their raids were a consequence of the ego of the rest of the world, and its lavish living in a long historical road full of laughter at the weak. The Mongols won because their enemies were so full of themselves. And, the "Black Death" was also parallel to their expansions, so personally I believe the two are a curse in a way.