If someone is physically and mentally able to defend themselves, at least to some degree, but is unwilling to expend any time or effort in doing so doesn’t that mean they must not believe their life is worth defending?
Furthermore, suppose someone is willing to defend themselves. But if they are only willing to defend themselves with one hand tied behind their back, are they really serious about self defense? Do they really believe their life is worth defending if they insist on handicapping themselves when they defend themselves?
Why should someone be willing to risk themselves to protect someone else who doesn’t believe their own life is worth defending?
Why should someone defend another person who isn’t willing and able to use tools, and the best type of tools, to defend themselves?
Why should friends, neighbors, and the police provide physical security for people who are anti-gun?