We aren't a slave to the GOP. If you keep the mindset that we must stay in the GOP at all costs because it is the only way, then we will get nowhere.
I'm not saying we shouldn't stay in the GOP. But we have to keep our options open. Otherwise, what's the point? They'll just keep ignoring us because as long as we're in their party, we're not a threat to them, at all.
But 3rd party... and the ability to play spoiler in every election from this point forward, that's called leverage, and we would be a fool not to use it.