>It’s not that compliated, hawking is always wrong,...
WHAT are you talking about? That’s one heck of a non-sequitur.
Just because something is addressed in the Intellectual field does not mean that it is wrong. Blaise Pascal, a physicist/mathematician/theologian, addressed many issues on the intellectual level: Pascal’s Wager, for instance.
Pascal said “Knowledge of physical science will not console me for ignorance of morality in time of affliction, but knowledge of morality will always console me for ignorance of physical science.” But note that philosophy, theology, mathematics, and logic are all alike NOT physical sciences... in order to not have an ‘ignorance of morality’ we need to be able to apply logic to it, so that we can consistently test and discriminate what is right and what is wrong. For example, the bible makes no mention of sex-change operations, as such; so they must be moral and right, correct? NO! Because [just] as Jesus said when asked about divorce, “Male and Female He made them,” and used that to expound on so MUST any Christian who wishes to be Christ-like.
So, answer this: What fence/wall? If you can answer that question then I will have the required context to answer your question; yes, it can be metaphor or real. As I said previously I am interpreting it to be the “border fence” which was never finished; if I am wrong in that assumption the burden is [now] on you to clarify what you really meant.