Can one of the Yellow Avatars explain to me the main differences between the Libertarian candidates? And are they all doomed to lose against Gary Johnson?
It's mostly a difference in style, and Johnson is the frontrunner, although not a complete lock. McAfee is probably the only candidate not to really represent a specific faction of the party as Petersen and Perry do, plus he has been hovering around having 2nd to 3rd highest support, so I think he's easily the 2nd most likely to get the nomination.
Here are some actual policy differences:
Abortion:
Pro-choice: Johnson, McAfee, Perry
Pro-life: Petersen
Anti-discrimination laws:
Private and public: Johnson
Public only: McAfee, Perry, Petersen
GMOs:
Anti-labeling: Perry, Petersen
Pro-labeling: Johnson, McAfee
Office of Digital Transformation:
Create: McAfee
Don't create: Johnson, Perry, Petersen
Standing army:
Abolish: Perry
Keep but reduce: Johnson, McAfee, Petersen
Taxes:
Lower, move to consumption: Johnson
Lower, flatten: McAfee, Perry, Petersen