What are the consequences of going abroad with a group and running privately in the United States?

If you run it privately, you will succeed in becoming an American black household.

Black households can't find proper jobs in the United States, and they can't get social benefits such as enrollment and loans.

If you are caught (such as speeding and being stopped by the police), the biggest possibility is repatriation, and you will not get an American visa for life.

I suggest not to quit the group without permission. There are many ways to stay in America, and this is the worst one.