Are we sure that "Genghis Khan" and his so-called "Mongol People" ever existed in medieval times? Personally, I am always wary of blatant "Genghis" propaganda that comes from modern Mongolia.
1) Look at the international position of Mongolia in recent history - being subjugated first to Qing China, then to Russia. It is a poor, insignificant country. Yet, Mongolian propaganda wants to make us believe that "Genghis" supposedly was a great conqueror, and he and his descendants surely must have brought their conquered riches back to their homeland. Where are these riches now? Does any of the establishment historians have an answer to that?
2) We are told that "Genghis" and his "Mongols" were bloodthirsty, killing the population of cities who didn't surrender. But how many people died? Where's the demographical analysis, which takes all objective documents, like birth and death certificates, in account? Nowhere! Moreover, some supporters of "Genghis"' existence state in this very thread, that he was not a bloodthirsty warlord, but a capable and benevolent statesman! The propagators of "Genghis" myth can't even keep their own story straight!
3) Same thing with those who insist that "medieval Mongols" existed. In their "respectable history works" we can read that the "Mongols" converted to Islam under Uzbeg Khan in the 14th century. On the other hand, the same "respectable works" state that the "Mongols" converted to Buddhism under Altan Khan in 16th century. These inconsistencies are mind-boggling and prove the might of brainwashing modern Mongolian lobbyists subject the ignorant sheeple of the world.
4) The narrative about the "Golden Horde Mongolians" with their capital in lower Volga is completely incoherent. We are told about "rich cities" of Saray and Ukek, but there's rich historic evidence that when Russian explorers came to these steppes, they saw no "rich cities". Moreover, if there were "Mongols" there, one would expect their descendants to remain there, but the current non-Russian population of these lands considers itself to be "Tatar", "Kalmyk", etc. There's no evidence for existence of the completely mythical "Golden Horde"! Even the name sounds like something from a bad fantasy novel!
To conclude, I don't hate Mongols and am not an enemy of the Mongolian people. But I value truth, and think that the people of the world deserve to know it. We should relentlessly combat the modern Mongolian lies and distortion of history.