I subscribe to the modern take that there is no difference between Clark and Superman.
As for "humanizing" him, he's already utterly human. Modest upbringing, simple honest values, goes to work every day in an office, lost his heart to the love of his life. Superpowers aside, he's far more relatable than Batman, since most of us have lived our own versions of Clark's life, but few of us are billionaires, or suffered a violent childhood tragedy that defines our existence and forever isolates and obsesses us (at least I hope not).
As for "humanizing" him, he's already utterly human. Modest upbringing, simple honest values, goes to work every day in an office, lost his heart to the love of his life. Superpowers aside, he's far more relatable than Batman, since most of us have lived our own versions of Clark's life, but few of us are billionaires, or suffered a violent childhood tragedy that defines our existence and forever isolates and obsesses us (at least I hope not).