When we talk about ethical thought experiments like, would you take the organs out of a living person, to save the lives of five other people, the fact that in daily-life situations most people agree and in thought experiment situations there is disagreement and small changes make a big difference could be explained by the idea that human moral intuition is not based on a few ground pricinciples, like "don't murder" or "maximize happiness", but instead on many ideas, formed in practical daily life.

That's one critique of ethical thought experiments: They presuppose there is an elegant set of a few universal moral ground-laws and those moral axioms are connected to moral intuition.