True, best we can do is focus on the long march and work to elect the best of the candidates that have an actual chance at winning.
I hope that Trump's presence will galvanize the electorate a bit, shaking things up, so that the GOP sees the error of their ways. Since the LP doesn't stand a chance at winning, this is the best option. Maybe, just maybe, the LP's base will open their eyes and start working within the system to change the system. You can't do that from the outside like they seem to insist on.