Just because you disagree with something doesn't make it "tautology." Was Jesus engaged in "tautology" in this passage...
Mark 10...
17 Now as He was going out on the road, one came running, knelt before Him, and asked Him, “Good Teacher, what shall I do that I may inherit eternal life?”
18 So Jesus said to him, “Why do you call Me good? No one is good but One, that is, God."
Was Jesus playing a word game?
You may not LIKE this view, but the identification of God with that which is good goes back to the very beginnings of Christianity itself.