What does Lot's offer of his daughters show about how far he had fallen?

Les teaches that Lot stepped out on the front stoop and pleaded with the crowd of Sodomites, and this shows how far down the ladder Lot had slipped. Although he called them "brethren" and begged them not to do wickedly, he offered his two daughters who had not known man—probably late teenagers, virgin young women. Les explains that this is hard to comprehend: a father willing to throw two such young ladies to the wolves. He told the mob they could have them, only leave the two men alone, because the men had come under the shadow of his roof. The Sodomites rejected Lot's authority, saying he came to sojourn and now set himself as judge, and they knew he was still an outsider. They threatened worse and pressed hard on Lot, so his own life was in danger despite his offer, until the angels used their power and intervened.