Cross to the other side of the street. If they follow you, then you have probable cause to suspect that a crime is about to take place. Keep your weapon concealed until they are nearly upon you. Then show it and tell them they are under arrest. Watch how they flee. If they don’t, then you may have to shoot the leader.
You might even have to run away from them in the first place since many state laws require you to give ground/retreat if someone is not yet a clear and present danger to you. Need to check state and local laws on “stand your ground”, the need to “retreat”, etc.
There is NO GOOD DECISION in these situations but your own survival is paramount. Be prepared but don’t challenge. Let them be the aggressors. Then you will have legal justification for taking action to protect your life.
If attacked, kill the bastards.
***Cross to the other side of the street.***
We’ve come a lo-o-ong way from the days when a darkey would step off the curb into the gutter and say “suh” when you walked by.
Now whitey steps off the curb.