The second is literally the only way party reform has occurred historically. If you think change can happen another way you're delusional. You're literally declaring that it has to be full tilt republican fascism or actual revolution because both of those are infinitely more likely than a third party ever having power. So are you just an accelerationist? You working for republicans? Are you even American? You a tankie? What's your goal here, because stopping the rise of fascism sure doesn't seem to rate for you.