Even though the Mongols were extremely Grossim people but being able to stretch their empire for 11 million miles. They did understand that when they conquered areas people were never going to converte. And they were shamanistic and seeing shaminsits were mainly in their country they knew that they couldn't make everyone shamanistic. And have to tolerate their beliefs
So why cant we be like them besides all of blood shed. But be able to tolerate their religions.