First video
1) Ignoring the debt is blatantly ignoring the fact that we pay interest on that debt.
6% of our revenue in 2012 was immediately lost to interest payments. That number can only go up until we start having a mandatory surplus budget every year and pay down the debt. Even if we stay steady with the debt, that number will most likely go up as interest rates go up, which means we'll have to cut *more* spending later even though revenue and spending stayed the same.
2) He *almost* had it right when he was on the chart comparing % increase of various things over the years, adjusted for inflation. If he would have added one more line showing the average salary increase over the past 60 years, the reason why government spending has shot up 3000% would be plain as the nose on your face. Cutting spending will have an immediate harmful effect on our citizens and our economy. We need to be raising the minimum wage to something that's livable in order to allow people to live without government subsidization (welfare, housing assistance, etc). In addition to raising the minimum wage we need to put caps on the maximum difference between the lowest paid worker and the highest paid worker in corporations. The more inequality in salary distribution, the greater the need for government assistance will be (CEOs making 350x the *average* worker is bullshit).
Second video
1) Huzzah, he mentioned the interest on the debt. I like how he remembers it when it helps make his point. If you took out that chunk for interest, the revenue we generated in that year *would* cover the mandatory spending.
2) Is this motherfucker suggesting that there should be no social programs whatsoever? Because if he's not, then the question of "which cuts" actually is pretty fucking important, contrary to what he thinks.
Third video
1) Does this guy actually have a PhD in economics, or is it some other bullshit? I notice he's the "director of undergraduate studies in economics." That doesn't mean he necessarily knows dick about the subject.
2) Assuming he does have a doctorate in economics, how the fuck can someone with a doctorate not understand that there's always two parts to the equation? The amount people (the government) are willing and able to spend, and the amount people (doctors/healthcare organizations) are willing and able to charge. It doesn't take a fucking rocket scientist to realize that if we started regulating the healthcare industry (since obamacare adds regulation to the health insurance industry) that we could dramatically reduce the amount the government is getting charged for care provided to people under things like medicare/medicaid.