[Hope]

Difficult lah...China 1.4 billions...

Islam was not founded by Muhammad.He was a prophet and the FINAL messenger of Islam.There is no more messengers from creator of heaven and earth. Have you heard anyone claiming to be messenger from creator of heaven and earth after Muhammad?
As per Islamic narrations,you and me are members of nation of Muhammad.I follow him. But you don’t.
When Muhammad came with Quran, only one person accepted Islam. After 1400 years,Now Islam has spread to new Zealand to Alaska.China it self have over 20 million which about 2% of population.You know last 75-100 years china is controlled by CCP.Do you think they can rule china forever? Do you know most of china people who ever migrated other countries they converted to Christianity and few to Islam? 
As per Islamic narrations, when Jesus decend to Damascus most no of people including atheists, polytheists, people of the book will accept Islam.

Jesus was the prophet and messenger of Islam before Muhammad.Jesus will not teach bibles or Gospel.

So don’t think China can not be Muslim.If they losen the access to internet China people will learn Islam like you learned. Did you know something about Islam 20 years ago?May be you knew Malay and Hari Raya.Now you are forced in this forum to read a lot whether you like or not