However, there is the fact that she is imminently more qualified than zero so is electable as a replacement on that basis alone.
Not at all. She's just as inexperience as he was in 2008, and maybe less so, since she's never even run statewide.
Your idea of "more qualified" means you agree with her, not that she's got more experience than a sitting president who, as a candidate, you probably saw as an empty suit.