What did Abraham mean by "Will not the Judge of all the earth do right?" in (Genesis 18:25) Was he calling God's judgment into question?

​       Hello I think the question asked by Abraham shows what kind of relationship he developed with God. He only asked: if there are righteous people in the cities will they also have to die along with the sinners? Does God intend to separate people and deliver the good ones? These are questions even today that we ask because we know sin is everywhere and people do wrong. Somehow we can do nothing about it but we are not gross sinners. Abraham asked a simple question with no intent to offend.
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