The advice is not about initiating a conflict. It is about not to appear an easy victim in order not to provoke aggression.
But life is always about fight-or-flight, so flight should remain an option, very often the best one.
By not signalling readiness to fight back, you increase probability of aggression by removing all costs to the potential perpetrator from their calculation.
It is pure game theory. An aggressive person expects no bad outcomes from his passive victim. If they get a signal that their own outcome may be not that good, even marginally, this very often changes their behaviour.
That's why the advice to act submissively presented as "avoiding confrontation" is often the wrong advice.
You are not seeking confrontation, but you should signal that you are ready for confrontation. Stops aggressive behaviour very often.
Ruby has been removing stuff from stdlib for some time now. But "moving" is the correct word, because it is simply moved to a stand-alone gem, and with packaging situation in Ruby being so good, it feels completely seamless.
But life is always about fight-or-flight, so flight should remain an option, very often the best one.
By not signalling readiness to fight back, you increase probability of aggression by removing all costs to the potential perpetrator from their calculation.