I don't think Clinton's unelectable either, but to my mind the issue is not, Can she become President, but What will she be like as President? I've said this many times before, America is facing many issues and problems right now that do NOT require yet another polarising, divisive President, but someone who has adopted a conciliatory and bipartisan approach.
If Clinton becomes President, it'll be a case of same old same old. The same old partisan-driven politics where left and right hate each other's guts and nothing gets done in the process. Obama, however, could provide a major seismic shift as President, comparable to Reagan in 80 or FDR in 32 (in that they caused the political mainstream the shift in favour of one part of the spectrum). Left-leaning Democrats have a major opportunity to take over the political mainstream, but if they nominate Clinton they will have squandered it.
I completely agree. I have wanted to make this point but haven't had the time or the inclination to do so.