Can the Hui people be regarded as descendants of the Yellow Emperor?

Hui people are not necessarily true after the Yellow Emperor, but they are not absolute. Hui people immigrated from Iran, Xinjiang and even Palestine, but some Han people joined the Hui people. For example, most women married by Han people will become Hui people and will not marry outside. So your classmates are not definitely not descendants of the Chinese people, but descendants of the Chinese people.