People that choose to be well educated on a subject will be and people that will "go with their gut" will normally do that. I don't believe this is a good basis for bashing surveys. I believe that people do talk about things and have opinions on matters they have no education on. I don't see what this has to do with polls or how it makes them any less reliable than the general voting population.
On page 4 grocery shopping for schools, senior citizens and the environment. The reality is you do grocery shop. It might not come through in a poll but a politician would have to pick and choose during a budget while trying not to alienate any base group that might vote for them. Polls provide simplicity, some on important issues and some on throwaway or obvious issues. The only thing that influences a politican's vote besides a wide survey are the people passionate enough to write letters to their Congressman or to show up for a Town Hall, also a skewed