Leaving the wild interpretations aside, the YouGov polpls show that the results are within the margin of error. So the only honest response is that the poll is too close to call.

As with all polls, the figures are weighted to represent as best they can the wider population, rather than the people interviewed. It is not clear whether the weighting is based on the whole population or their prediction of how many will vote. However, looking at the age ranges most were barely weighted at all, but the youth vote was significantly weighted against. It is by no means clear this is a good representation.

People need to look at such things before leaping in with "what the polls show."