well you asked why, and i answered, no need to call me a dumbass.  i gave you 2 new reasons, 2 more than you had.  Personally, I dont care what you personally are less inclined to vote for.  Your ideas lack sense; you say youd rather see a candidate give up than to keep trying, and you say that you would rather see them running another office of business.  well Johnson started a 1 man handyman business and grew it until it employed 1000 people: engineers, architects, contractors, etc.  He also has held the position of Governor of New Mexico for 2 terms (the limit in case you didn't know) and he did that with no political background running as a republican in a 2 to 1 democratic state.  Id say he has been successful.  To your last point - how can you say the Republican party isnt going to adopt any Libertarian ideas if he was already a Republican governor with the majority of the same ideas?  He is attempting to move up from his last position of Governor, attempting to get other views out (and being successful at it), and doing what HE wants to do.  So keep on calling me names, but I will keep supporting the people I believe in, and I will not fall for the stupid idea of 2 parties rule all, and the rest should give up.
"No personally, I would be less inclined to vote for a candidate in a presidential election who has already ran and failed" - Well I guess your personal view is that perseverance doesn't pay off, good call.