If what were true? I said that Obama is the most popular politician in the country (objectively true), that he would win easily if he could run again (speculative, but strongly supported by the evidence), that Biden is the frontrunner in the Democratic primary (objectively true), because of his connection with Obama (speculative, but very solid). And that you're confused by because you read sources that are not representative of common knowledge and opinion (true). None of those facts are dependent on Clinton winning (WTF are you even talking about?), and your prediction that Biden will lose is speculative (IMO, it's possible--he's not a favorite against the field, but your confidence isn't justified).
The headline of this thread is not accurate. Obviously, candidates who are not leading are trying to take out the leading guy by attacking his record, and a small portion of that has been directed to his time as VP. There's no shift in the party against Obama, though, given that his approval rating among Democratic voters is *higher* now than it was while he was president. You have a lot of poorly informed ranting from the dregs of the WR ITT, but objectively, Obama's presidency was a massive success, and it's a safe bet that he'll go down in history as one of the greatest presidents we've ever had.