The polling was actually accurate if you bothered to read them.  Trump won in Michigan, PA, and Wisconsin by quite a bit less than the margin for error in the polls.  The talking heads kept saying that Hillary had a lock on it, but the margin for error was something like +- 3% in most of those polls, Trump won those 3 states by less than 1% each.  

The media tries, they sometimes do a good job, sometimes not so much.  I'd say that in the end, with regards to the election, they did a poor job, if only because of how much free media time they gave Trump.

As for the rest, Trump is making us look like a nation of fools.  You guys got upset about Obama "leading from behind".  Trump isn't leading, he is whining about the groups you listed, but leading, not so much.