God did do something about it as in your quote of John 3:16-17. Tied to our free will and His respecting that power to choose, He laid out that choice with this caveat in the very next verse: Whoever believes in him is not condemned, but whoever does not believe stands condemned already because they have not believed in the name of God’s one and only Son.

My searching has a bit of a different take on Hell than the Mideval concoction. In the Parable of the Rich Man and Lazarus, there are two places for our souls to go: sheol and Abrahams's Bosom. Beyond the fact that there are those two very different environments, I have no particular insight, but obviously, the one is much more appealing to me than the other...

Now, I think of them as kinds of waiting rooms waiting for the train's arrival to take us to the Judgment Seat. At that Final Judgment we get a pass to the New Heaven and the New Earth or to the dreaded Lake of Fire. The wrong picture is that it is a place of infinite sufferring. The correct picture is drawn in Matthew 3:12 - "His winnowing fork is in his hand, and he will clear his threshing floor, gathering his wheat into the barn and burning up the chaff with unquenchable fire.”

The key to understanding is in the phrase "burning up the chaff" which indicates to me nothing will be left. Done. Finished. Over. Ended. No more. Bye-bye. Adios. Exist no more. Nowhere to be found. Gone. Kaput. Defunct. Exinct and extinguished.

It's called Justice.