If you want to have a bit of fun (but with a serious purpose), simply ask the obvious question. Did Jesus’ flesh profit really nothing? You’ll see back-pedalling like you’ve never seen in your life.
BTW, the correct understanding of “the flesh profits nothing” can be found by a parallel construction in Matt 16:16-17:
Simon Peter replied, "You are the Christ, the Son of the living God."
And Jesus answered him, "Blessed are you, Simon Bar-Jona! For flesh and blood has not revealed this to you, but my Father who is in heaven.