They are worth absolutely nothing. I don't need a poll to tell me the country is divided. Which is essentially what polls tell those that haven't figured it out.
There wasn't a single poll saying democrats would lose almost all of their power at the state and federal level last year and that they would be in their weakest position since the 1920's. But that's exactly what happened. And they lost the presidency to a reality TV host.
To be the intellectuals, some democrats seem to have a hard time learning.