It is THEIR JOB to fix those things. ALL of those things. The fact that they're bad at doing their jobs doesn't mean that you shouldn't criticize them for being bad at their jobs.
This is true, although oftentimes the voters punish political parties for doing their job. Specifically with regulation, Obama enacted a raft of regulations (such as the EC pneumatic brakes thing) and the Republicans made quite a successful line of attack out of it.
Because there's no way to quantify or demonstrate to the voters how many potential disasters have been averted. Enacting precautionary regulations doesn't tend to drive up a politician's popularity. But "red tape strangles business" has been a potent attack line for quite a few years, regardless of whether it's nonsense or not.
This is absolutely not to say the regulation shouldn't have been brought back, or that the Dems shouldn't have tried. It's just to say that the idea that political parties can just launch everything they want to, and the good ideas will attract support and political capital on their own merit, is categorically untrue.
(...of course, part of the reason we're in this situation is that the Dems have consistently failed to put forward a coherent argument in defence of what they're doing).