In 2007, conservatives were terrified that Hillary Clinton, the Nurse Rached of politics, would get the Democratic nomination in 2008 and win the presidency. Remember Sean Hannity's Stop Hillary Express? Then along came Barack Obama and he did what seemed to be impossible, narrowly edging out Hillary for the nomination. To conservatives, Obama was somewhat worse than Hillary, in some ways. There was no cheering for Obama from the right. Then Obama wins the presidency and conservatives feel anguish because we know how bad it will be.
Some things are different this time. First of all, much of the cause of the low ratings is, frankly, racism. Many people can't yet accept the legitimacy of the President as a black man. That will not be a problem with Hillary Clinton for President. Figure that the President would have about 5% higher approval ratings were he white.
Wrong. Hillary's favorable ratings are worse than Obama's. Hillary's favorables are 43-50, while Obama's favorables are 47-46.
You also ignore the Quinnipiac poll showing Sanders losing to every GOP candidate; even 12 points to Carson. Dems wont risk Sanders struggling to get 257 electors. Clinton will win 272 electors and Kaine wont be nominee, Castro will
