1. They weren't wrong nationally. They just didn't get the state by state breakdown correct.

You have to remember that polls show a numerical outcome, not necessarily how it will filter through the various rules.

https://en.wikipedia.org/wiki/Nationwide_opinion_polling_for...

https://en.wikipedia.org/wiki/2016_United_States_presidentia...

2. Even those that were off were off by just a few percentage points. This is a 2 to 1 ratio.

Hillary Clinton won the popular vote, using 2016 to argue polls are massively off is basically admitting you don't understand what you're talking about.