“Good” is just a word defined by those who use it, like all words. Christians can say that only God is good, and I can disagree with them.
I don’t think anyone should be tortured for eternity, no matter what they do. Punishment is only useful to society to dissuade people from breaking social contracts. No one gains anything by causing unnecessary pain, no matter how much we may think someone “deserves” it. If there is no way for us to hurt anyone in the afterlife, there is no need for punishment. Therefore, if God were to punish someone anyway, it would be out of cruelty rather than love or goodness.
If God’s judgement were fair and our understanding was flawed, then it is God’s obligation to explain in simple terms why it is flawed. Until this happens, I am unable to believe that God is anything other than fictional or cruel.
The large number of Christians has led to it being common, so doctors ask every time a baby is born, and most of the time the parents say yes because they dont realize how it will affect their child