I'm not sure what you are referring to. It is a fantasy to think any third party will ever become viable, at least in the next 50 years. Republicans and Democrats have the system rigged so that only one of the two of them can win and the only way to get the system changed is for Republicans and Democrats to change it. Fat chance of that ever happening, even if lightning struck and a Libertarian won the presidency (now we're back to fantasyland again).
Surely, as a Libertarian, you know that a viable third party just isn't going to happen. Libertarians all have an "L" painted across their foreheads. "L" being for loser. I am an independent because over the years I have voted for a mix of Republicans, Democrats, and others. I'm not beholden to any one party, even though I lean right. I actually considered voting for Johnson in 2016 but he just wasn't up to the job so I wrote in John Kasich. The problem with Libertarians is that they think you can vote for any unqualified Tom, Dick, or Jane and it would be better than voting for either an R or a D. You seem to be under the delusion that Libertarians will actually mean something some day while I choose to make my fantasies about sexy babes. So, my fantasies are much better than your fantasies.