Hillary Clinton didn't call the working class deplorables.

Here are her words, verbatim:

    “You know, to just be grossly generalistic, you could put half of Trump’s 
    supporters into what I call the basket of deplorables. Right?” 

    “The racist, sexist, homophobic, xenophobic, Islamaphobic—you name it. 
    And unfortunately there are people like that. And he has lifted them up.”

As you can read, the "basket of deplorables" refers to "about half of Trump's supporters" who she considers "“The racist, sexist, homophobic, xenophobic, Islamaphobic—you name it."

Now one can argue that she was wrong about the fraction of Trump's supporters who fit this archetype, but she did also call her own comment "grossly generalistic," so she wasn't trying to be precise and make a statement about literally 50% of Trump supporters.

The only way someone can interpret this as referring to the entire working class is if, 1) they simply drink the Trumpist Kool-Aid without bothering to research because Screechy Woman Bad, or 2) they believe the entire working class comprises about half of Trump supporters, all of whom are racist, sexist, homophobic and xenophobic.

And Biden being boring shouldn't be a negative. The Presidency isn't supposed to be entertainment, it's a political office in a bureaucracy.