And the bible way works because this is the operating manual for mankind. Basic Instructions Before Leaving Earth. If you want the airplane to fly, you read how its manufacturer wants you to turn this key, that switch, push this knob, pull that one, etc. Then do it. The manufacturer made it to respond to that. Your best theory about the airplane won’t prevail over this.
For us to abandon the family to those who would destroy it is to commit national suicide.
Marx and Engels knew quite well that they could not destroy free societies without destroying the family. And they said so quite clearly in their writings.