If you are starving and can barely afford rent and food, then you don;t go out, cut out paying for movies and cable and museum visits and the bar with friends. However, once you have things on a stable footing, how much of a quality of life is it to go through your entire life with no entertainment?
Same with government. If this were the massive great depression, or the Greek situation - owing more in interest than you can afoord, ludicrously generour payroll and pensions, propping up business models that suck up so much money the country is failing - then it would be time to cut back with a big knife.
However, the situation is NOT that dire. The problem has been pinpointed above - just a few significant expenditures account for the majority of spending, and until the government is prepared to deal with those, firing Big Bird, or cutting the PBS support, is just window dressing.
The first problem is that the federal and state governments have to get their act together and stop duplicating functions. If the Feds are going to do education, or health care, for example, then it should be done in coordination with the states. The second is that taxes have to go up. Whine all you want, but if people want the military with all their cool toys, if they want a pension in old age, or fall-back health care, or college educations, someone has to pay for it.
It’s no surprise that every other first-world country generally has given up on huge military and put their money into universal health care. It’s hard to afford both. They also generally ahve higher taxes that the USA, in most cases much higher.
It’s simple economics. You can’t have a big military, a good social safety net, and low taxes.
Romney has continuously said he will plug loopholes and cut unnecessary spending instead of raising taxes; however, this is a good example. Shutting down PBS, a significant icon of US entertainment life, saves you almost nothing.