I don't think that's Nate Silver's point? He said that some specific journalists are generalizing their social circle's opinion to the wider public leading them to make unfounded claims about the election. It seems clear that for all the attention pro-Palestine groups are given, the issue is basically a rounding error for the election, yet many left wing journalists are adamant that Biden is throwing the election on this issue. Are they bad journalists, or cynical propagandists? Dunno.