It's just a bad metaphor no matter how you explain it. It's very contrived, it elevates sexual choices to life-and-death, and it really doesn't illuminate anything about any of the problems it might be targeted toward.

I suspect it's a mind-killing topic that just can't be discussed well here, but even if you want to try, don't use long, obtuse, pointless stories. Use either personal truths or rational analysis, so there's something to support or discuss.