I don’t understand extreme goths

I really don’t understand “extreme” goths. I myself am only slightly gothic and I don’t see what the obsession with death and blood ect is all about. I’m not trying to slag the more extreme goths off, but all the white make up and black hair is pointless, what is it for?
Could someone please explain what they see in taking the gothic theme to the extreme?ThanksNightmare Heat