I agree. I'm more interested in the next link in the chain: the idea that sinful people are disposable.
Why in the world can't you just leave the bible in whatever form it comes in? Why must you re-write it into another form by which you color everything with bias. If you can't contend with what is, it is of no use to confound what isn't. The bible never even hints that they are just trash to be disposed of. It says:
New International Version
"Jerusalem, Jerusalem, you who kill the prophets and stone those sent to you, how often I have longed to gather your children together, as a hen gathers her chicks under her wings, and you were not willing.
No hint of separating unimportant chaff from wheat here.
New International Version
The Lord is not slow in keeping his promise, as some understand slowness. Instead he is patient with you, not wanting anyone to perish, but everyone to come to repentance.
No hint he does not regard even he rebellious as valuable.
Ezekiel 33:11
Say to them, 'As surely as I live, declares the Sovereign LORD, I take no pleasure in the death of the wicked, but rather that they turn from their ways and live. Turn! Turn from your evil ways! Why will you die, people of Israel?
No careless disregard for his enemies but impassioned pleas.
I have no idea what you meant by disposable. If you meant unnecessary then we all are and necessarily are. A God that requires anything else is not God. If you mean that he has no regard for them or that he considers them supercargo to be disposed of as soon as possible your just wrong. He gave everything to save them.
New International Version
For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life.
Now if after all that there are those who just do not want any of it he will not force them to suffer his existence forever. They will get exactly what they wanted. No God. No other action could be more just.