They’re not even refusing votes on these appointees based on any individual qualities the specific appointees have. It’s a mindless, blanket rejection of any appointee Pres. Obama wants for the sole reason that Pres. Obama wants him/her. No other reason.
I know some might say we shouldn’t care because Democrats are just as corporatist are Republicans and that’s certainly true. But this is another part of the right-wing’s 30+ year campaign. It's no longer mere opposition or obstructionism. It's outright sabotage. The right's objective is to sabotage nearly all government functions, even the judiciary, and then claim it as proof that the government undermined by their sabotage “can’t” work. They don't have the guts or the popular support to outright repeal what they don't like. So they engage in a series of behind-the-scenes death by 1000 cuts attacks that ordinary voters don't pay attention to. It's clever. It's working. And we can't let it.