They are like the toddler in the sand box who screams "MIIIIINE!!!!!!" like a banshee when someone tells them it's time to share. People should feel sorry for them. They are stuck in a primitive mental phase with underdeveloped empathy.
It's unfortunate that modern technology and material wealth has created the vague illusion that it's possible to exist as an island. In harsher, less comfortable past ages people were forced to work together somewhat just to survive. Material modernity has allowed people who would traditionally get tossed in the trash heap the opportunity to survive and even prosper. Unfortunately capitalism even seems to reward people with mild anti-social tendencies. Even the entrepreneurs we are supposed to worship often steal other people's ideas with no hesitation and companies often (mis)-use lawyers and patent as much as genuine creativity to get ahead of the game and crush the competition.
"John Galt" Randroid worshipers are definitely the worst of the worst. Sadly I have more patience and sympathy for hardcore evangelicals as they are mostly good caring people despite a lot of their offensive views on things like gay marriage. It's so sad that the conservative movement has gotten so ridiculous in this country that I miss the old social conservatives. The tolerance for cognitive dissonance in Christian teabaggers who taut the Ayn Rand bullshit is something I will never understand.