You raised a good point Jadis regarding Canada's politcal parties vs. the US. They are quite different so I understand by Canadian or other national standards, our democratic party is probably less liberal.
I believe things are usually better when the power is with the people. If we didn't have multiple options, I don't people certain "businesses" would be held as accountable. We pay our own healthcare. As a result, yes the taxes in the US might be less (depending where you are) than in Canada (which leaves us more $$ for other things to contribute into our economy). But if I don't like the care I'm getting, I can find an insurance provider who will offer me better options. Similar with doctors as well because drs typically aim for customer (patient) satisfaction.
Though there are some who argue about high healthcare costs (and they can be high), our nation does have a public health system for those who make below a determined amount. As well, if anyone is injured, our county hospitals are required to give basic nessisary treatment. In addition, we do have the county health clinics that see some for free or on a sliding scale if they should need vaccines etc.. Worse cases, basic needs are typically covered (I'm sure there are exceptions in every case).
I believe too that when their is competition between businesses the people usually benifit. It tends to drive costs down. Take the phone comanies for example--even cell phones.
When businesses are required to pay higher taxes, their employees often suffer. I come from a family of buisness owners and my grandparents have had to let people go even from taxes going up. Those who worked very hard to be in a comfortable position financially should not be penalized for their hard work by paying so much higher of a percentage in taxes than others. I'm not talking about the very rich either--even the upper middle class.
By allowing Government to dictate so much, I really believe we would be promoting poor work ethics for many. If people know they'd better get a good education and a good job because the government isn't going to be there to support them, I'd bet we'd see a lot more people working harder. I beleive those who work hard for what they have to own also take much better care of it. Perhaps people would plan their lives better not being so confident that welfare (tax payers) will support them should they need it.
I know there are people who are unable to work. What did people do before the gov. stepped in? Good people took care of each other. I have heard that private nursing homes are better than the public or subsidized ones. I believe this has a lot to do with choice as well.
School systems seem to do better too when power is given to the people (yes, I watched the John Stosel report on
Stupid in America 
). Seems that even charter schools do better and run off less funds because there are different standards for teachers. Private schools and homeschools tend to test out higher and run on less funding per student than the public schools do because there is more accountablity. I have not seen any evidence that taxing us more will benifit us more.
I'm NOT anti-tax. Our kids should be entitled to public schooling funded by us, but if the $5-8k would follow each child to a school of their choosing, not only could I get them in an awesome school for less, but likely save the gov (tax payers) some money too! I believe our military, and other public services need to be funded within fair reason.
How this relates to debate? My views here are considered "conservative" and most often it's associated with the Republican--and even Libertarian party. Seems too often we're taxed on things we don't really need: paying for congress people to attend a meeting in a tropical paradise like Hawaii. Putting hundreds of thousands of dollars of art in an unoccupied prison, giving overpaid polititians rediculous pay increases...
It just seems so many polititians are such hypocrites. Often I hear politcians stating they are against school choice, but don't have their children in public school. They talk about the poor like they care while they're writing off their extravagant "business expenses" in which the burdon seems to fall on those of us who are middle class. I fear having a democrat as president with the house and senate the way it is!
Don't get me wrong. There are a lot of good things people do too. Sorry this is so long. I am not a long poster, and will not do it again. Just wanted to share another POV.