Let's say theoretically that a full blown race war breaks out tomorrow. All nons start slaughtering Whites and the police/ FBI/ FEMA/ Palantir starts rounding up White dissidents to put in concentration camps.
Your goal is to survive as long as possible and take out as much of the racial enemy as possible in your CURRENT location. I know Americans like to have massive gun collections of 100+ pieces but you can't carry that much on your person. So let's be realistic and focus on weapons you could realistically carry on your person or in your car.
For me I'm stuck in a medium sized city. Half the population is nons, large police presence.
Sidearm: S&W M&P2.0 9mm
Primary: HK417 .308
Backup: B&T APC9
Grenades: M67, smoke, molotovs
Force multiplier: FPV drones
This is my stack. Sidearm is a last resort. Primary is a battle rifle to more effectively fight pigs in body armor and drop nogs with one shot. The SMG is for softer non targets when I don't want to waste .308. FPV drones to take out APCs, helicopters, and other enemy vehicles.
So weapons like machetes, axes, swords, bows, crossbows, knives, daggers might come in handy too. If I'd be in that situation, I'd be armed with a pistol with a silencer, a bow, a machete and a dagger as backup. Maybe a semi-automatic rifle too, just in case. I'd move in stealth, scout ahead, figure out movement patterns patiently, and seek to use my machete as much as possible.