Even if they are "bullshit jobs," they are what keeps food on the table for many people.

So the question is, what's bullshit about them? Are they bullshit because the capitalists could keep more money to themselves? Or are they bullshit because there are more socially beneficial jobs those people could be doing?

At some point, with increasing automation, "bullshit jobs" are going to be increasingly necessary, without radical changes in social or economic structure. Without them, you might as well just start sending the unemployed workers to death camps to be culled (though capitalism isn't so kind, and prefers to cull workers through slow deaths of neglect).