"How man can redeem God."
That reminds me of:
"MAN BITES DOG."
That's just a saying, that probably derives from an obscure card game, or maybe a movie. The embedded joke is the opposite of what's written is what's expected.
"Dog bites man" would make more sense then "Man bites dog."
Likewise in Universalism we have a broad ranging philosophy that boils down to the exact opposite of what you would expect: Universalism is the philosphy of how man redeems God, and saves Him from His conundrum.
What of the wicked and the heathen? Shall they be equal to the redeemed? No, they shall be cast out and burned with fire, unless they come to repentance before the One True God, in the Sons name. ~ God [Letters from God and His Christ - Volume 2 - Let the Lord Lead, You Only Need Follow...Let Go of Your Pride]