In a 2007 lecture on Leviticus 14-15, Dennis Prager says: Skin disease here is not leprosy. It is not so much a pathologic condition as a condition representing death. Tame aka impure aka unclean means death-oriented.
The Torah’s great division is between life and death. Egypt was death-oriented. The world was death-oriented. The Torah is life-oriented.
What is death oriented today? The Torah wants us to remove ourselves from the death-oriented.
* Jihadist theology. Their motto is that we love death as much as Jews love life. This is their own self-description. Your child blows himself up and the parents give out candy.
* Nazism was death oriented. The SS uniforms were black.