I hear you, but fact is, the polls said HRC would win by 3-4% and she won by 2.1%. We can quibble about how accurate that it is, but it is what it is. It came within a percent or so of being accurate. You want to say that Trump's approval rating polls are biased? Fine. Instead of 40.3 as it is now on RCP, it's 41.3. Done. You happy now? You proved a librul conspiracy?
And of course the polls were far more accurate in 2016 than in 2012.
"National polling did much better in 2016 than in 2012, when the average of the final polls in the contest between President Obama and GOP nominee Mitt Romney was off by more than 3 points. Polls showed Obama winning the popular vote by only seven-tenths of a point, and on Election Day he captured a wider 3.9-point vote margin."