You're simplifying it, lots is being done. Lots more could be done, of course-- but the republicans are under the impression that they're thinking more long-term by blocking this bill until another, more suitable (to them) bill is drafted. The democrats wrote the darn thing, so of course they're pushing to get it passed-- and they can accuse the republicans of slowing the whole process down, as well. And maybe they are, but it's impossible to tell if passing the bill is a mistake until some time after it's passed. For the time being though, it's win-win for the democrats. Either way it's the republican's fault.