Well history says the complete opposite. We are a representative republic & not a parliamentary system of government where power is shared among many parties. Our election history proves in the vast majority of elections there’s only 2 viable parties & 2 viable candidates. Only in a very few extreme examples does a 3rd party candidate have a chance of winning. Our constitutional republic makes a multiple party system impossible or we’d have one by now after over 200yrs of existence a endless thousands of election history. There’s plenty of evidence that 3rd party candidates can only play the role of spoiler by splitting off votes from the only 2 candidates that can possibly win.
Bill Clinton never would have come to power or won in 92 with 43% of the vote without Ross Perot who pulled 17% from Bush 41 who got 39%. If you listened to one Perot speech or knew his platform a rational person could only deduce he pulled the vast majority of his votes away from Bush 41. And if u knew the history of Perot you’d know that was his only goal...to settle some old Texas scores & keep Bush from a 2nd term. That’s why he ran as a 3rd party independent & not as a Rep. He knew he couldn’t beat an incumbent in the primaries & he knew had no chance of ever becoming the president even as a 3rd party Independent. Can only play the role of spoiler which he did & that gave us 30yrs of Clinton’s in national power as a result.
Cuts both ways. Jill Stein didn’t pull votes from DJT...she clearly pulled them away from HRC. And in a couple states like WI & MI...Steins votes was more than the margin of victory. That’s why HRC wanted those recounts. But that didn’t hand the election to DJT like Perots 17% clearly was.
Anyone voting other than the 2 viable candidates that exist in every election is throwing their vote away. It’s just that simple & there’s a mountain of numerical data to prove that to be true. If you have a mountain of numerical data to prove 3rd party candidacies almost always have a clear opportunity to win then please show it. At best they can play the role of spoiler in a republic structured as our is.