Genghis Khan never went down into what was not yet Vietnam, nor Japan...those were in the days of his descendents, especially Kublai, who had begun to conform to the "civilized" ways of the Chinese, unlike his grandfather. Rabble=kickass, society=weak.
The only time in his life where he "lost" a battle was against odds wherein his entire tribe should've been wiped out, and he was only 19 at the time he was then leading them. Many ascribe it a victory, for pulling survival out of the jaws of annihilation. Rabble=tenacious, society=submissive. He then REBUILT his tribe from scratch. Alexander never had to do that, and one wonders if he would've been like he was without his father's resources to start him out. The Khan built it all, since before him they WERE rabble, only just-then recently out from under the yoke of the Chinese. Alexander was childish enough to need to crucify people who told him that he wasn't a god, generals of his own army. Unspoken but understood by an entire empire was that for all intents, their leader was a god. A rider could transverse a thousand miles across the desert to a garrison, tell the base captain without warning that the Khan demanded his life, and the captain would kill himself...because no one lied about the will of the Khan. In regards to his loyalty to his companions, he granted to his tar-khans (paladins, greatest of all), amnesty from death penalty offenses up to nine times, among other things.
Some of his generals were treacherous against enemies, as the Mongols have been accused of. Temujin ("Strongest Metal," in Mongolian..."Supreme Earth Man" in Chinese), The Genghis Khan ("Ruler of the World"), is never recorded as breaking his word. Thus, when he said something, that closed the matter on whatever it was. All this in spite of the first law of the Yasa Code proclaiming: "It is ordered that all men should believe in one God, creator of Heaven and earth, the sole giver of goods and poverty as pleases Him, whose power over all things is absolute." Godless?
Perhaps one would claim they're close-minded, instead. Again untrue, with all religions, whatsoever, being tolerated in their borders, during a time when 'civilized nations' were engaged in fratricidal religious warfare. The only religions outlawed were those that preached rebellion to the Khan. Osama would've been burned to death in about two months, the moment he tried Islamic jihad.
As an administrator, he created a communications system across Asia that still beats the present level of development in many of those places. A message could travel 2,000 miles in two days...by expressmen who were exempt from all taxes and were paid well for their service. How'd someone like getting that as a reason to be a postman? No tax. Ever.
Calling him a dirty mongoloid is not racist...but it sure sounds like it's in the spirit of being so. Why do you think such groups are even called Mongoloid?