The animating concept behind the Trump campaign will be chaos. This is what history shows us fascists do when given the chance to participate in democratic political campaigns: They create chaos. They do it because chaos works to their advantage. They revel in it, because they can see how profoundly chaos unnerves democratic-republicans—everyone, that is, whether liberal or conservative, who believes in the basic idea of a representative government that is built around neutral rules. Fascism exists to pulverize neutral rules.
So they campaign with explicit intention to instill a sense of chaos. And then comes the topper: They have the audacity to insist that the only solution to the chaos—that they themselves have either grossly exaggerated or in some cases created!—is to vote for them: “You see, there is nothing but chaos afoot, and only we can restore order!”
Who would this viable third party challenger be and why would they be able to make actual change when neither Perot nor Nader could?
Don’t strawman the idea of 3rd party candidates. Just fall in line is not really a healthy mindset if change is desirable. Humans could never fly until they actually tried