Voter intensity matters a lot.
Where did you find that it is higher for the GOP than the Dems?
If it is, I think, needless to say, these polls should be completely ignored.
I am not one to ignore polls, but if that is the case, we are in good shape to at least keep from losing control of both houses and probably still have a workable majority....maybe lose two in the Senate and 5 in the House.
I say that now, but I must admit, the temptation to look at the polls is still huge and will be even if it is true taht the GOP is more motivated contrary to media speculation. Whoever invented polls should be shot.
Of course, this assumes undecideds don't break massively for Dems at the last minute or something.
Look up any of the posts by jamaroneps37. He's working with his son's polling/media firm, and he has shown that the voter intensity this year is even higher than 04 on our side, and lower on theirs.