I didn't remember to note, however, that whatever one thinks of the Senate's obligation to pass a budget resolution right now, it's hardly without precedent. Whose precedent? Why, the Bush-era Republican Congresses. As a 2010 CRS report explained: "At least one budget resolution has been adopted every year except 1998 (for FY1999), 2002 (for FY2003), 2004 (for FY2005), and 2006 (for FY2007)."
OK, so the first of those was a Clinton-era Republican Congress. Either way, it's not as if failing to do a budget resolution is a Democratic innovation.
The other question that's come up on twitter this afternoon is why conservatives are so obsessed with it. I think there are two reasons. One is that in my experience, people really don't understand what budgeting is about; there's a sense that it's like balancing one's checkbook: it's about keeping track of what's coming in and what's going out. Or maybe it's because a lot of people feel guilty and irresponsible for not constructing a household budget (or virtuous when they do), and think that without a budget, the government has no idea what's coming in and what's going out -- because without a budget, they don't know what's coming in and going out in their own lives. Of course, that's not true. Congressional budget resolutions are a tool, and perhaps a useful tool, and certainly a tool that they're supposed to use, but it's not a tool that's really all that comparable to a household budget, and certainly not the way that the government "learns" about total inflow and outflow.
The other reason is...well, we don't need a reason. That's the lesson of (among other things) "czar" craziness; the GOP-aligned media is perfectly capable of stirring up an obsession out of absolutely nothing.