I don't mean to be "that" person, but people have been talking about third-party candidates for as long as the U.S. has been a de facto two-party system. They don't win, and it's not the problem.
Just gonna leave this here. We are 15 years too late to do anything, and this is why:
The 2010 Supreme Court decision in the Citizens United vs FEC case effectively blocked the ability to enact limits on campaign spending. The Citizens United decision opened the floodgates to the billions of dollars that have since poured into the election system, enabling those with access to concentrated wealth to have vastly more influence over our political system than the average American.