Yes that is true unless of course we get states to switch to a runoff style elections which I believe we should do. Run offs guarantee that third parties aren’t spoilers while also getting rid of the stigma of being a spoiler so they might even have a real chance of getting elected.
Several southern states do have runoffs for all but presidential elections. It's also the only way we can ever ensure that the voter's choice wins in presidential primaries.
Dreaming on and dreaming on and dreaming on . . . It win;t happening!