You know damned well that the two party system is set up, deliberately, to squelch third parties. That's why you're here, posting in this thread.
Well, no, guy, it's more complicated than that.
I think the Electoral College sets up a situation where a two-party system is inevitable. Because even if a third party gained enough electoral votes to keep anyone from a majority, it would only result in the election being tossed into congress.
It started with the Federalists and Democratic-Republicans.
Then the Democrats and the Whigs
Then the Democrats and the Republicans.
Even if a party dies, another one quickly rises to take its place.
Third parties fall into two categories of fail.
The first are the fringe movements, like the Libertarians and the Greens. They represent very little of the electorate, and they often let the perfect be the enemy of the good. .
The other are the Short Movements, where an issue comes up that the two main parties aren't addressing.
They only have a life-cycle of one to two elections. The Reform Party was a good example of this, where it did well for one election, a little less the next time and completely vanished. They often have charismatic leaders, but little legs beyond that one guy. Othe examples are John Anderson in 1980, George Wallace in 1968, or Teddy Roosevelt in 1912.