But the advice is bogus in any context.
A terrified Tom Sundawo gave the robbers the money they wanted and, kneeling on the floor with his back to them, he begged them not to shoot him.He is fighting for his life with a bullet lodged in his brain.
They didn't heed his desperate pleas and callously shot him in the head.
Revisit that.... He did what they said. He gave them the money they asked for. It did not keep him safe.
Don't expect the Left to do anything except to say how if the criminals did not have guns they couldn't have shot him. No one will wonder if in the absence of guns he would have been stabbed or bludgeoned. These guys were eliminating a witness. They would have used whatever means was at their disposal to do so.