Not true, at least 1/2 of Jill are Never Hill, so give each 50/50 split.
If Ralph Nader hadn't been in it in 2000, we'd probably have gotten President Gore.
If Ross Perot hadn't been in it in 1992, we'd probably have gotten a second GHW Bush term.
The third partiers are in it. They're part of the playing field. The Republocrat and the Demican have to deal with it.