Don't rely on that one, google for yourself any poll in the last 10 years. In fact, think about just about any issue that you care about but is not current government policy, and google an opinion poll on it. You'll begin to see that democracy functions very effectively indeed. There are exceptions, such as the death penalty in the UK, but mostly legislation follows the opinion of the public (the voting public actually) quite closely, as we see with gay marriage and drug decriminalisation.
A little over half of those polled were okay with "Police and intelligence agencies [having] access to this information for anti-terrorism purposes". The YouGov report also shows that there's much less trust in politicians and civil servants to "behave responsibly" with such data.
The Guardian article says that "[records] will be made available to a wide range of government bodies", which sounds like politicians and civil servants to me.
Given that the government doesn't have a great track record of proportionate use of these powers, I think this isn't the same as the question asked in the poll. (For example, at a local level http://www.telegraph.co.uk/news/uknews/3333366/Half-of-counc...)
You're completely right. I would just point out that it's very close even when the question is explicitly phrased to specify politicians and civil servants (45 - 46%). It's likely that those with more trust in politicians are most more likely to be actual voters.
Don't rely on that one, google for yourself any poll in the last 10 years. In fact, think about just about any issue that you care about but is not current government policy, and google an opinion poll on it. You'll begin to see that democracy functions very effectively indeed. There are exceptions, such as the death penalty in the UK, but mostly legislation follows the opinion of the public (the voting public actually) quite closely, as we see with gay marriage and drug decriminalisation.