Yes, I am familiar with some of the so-called third parties. I'm saying I'll probably walk down that avenue and through that door should Hillary win the dem nomination. Was this unclear?
I assume you know what I mean by "two party system" and you do. I agree its imprecise language, but a widely accepted and understood label.
If the race is primarily, say, Hillary v. Trump, I would hope that a vote for a third party candidate might encourage future voters and politicians alike to stand up to the two parties and the money behind them, as Bernie is now.