Honestly it's impressive -- how do you lose to Donald Trump? Failed businessman and mediocre reality TV star. You've gotta be pretty good at what you do to fail over this guy.
This is the problem, though - there's no data that agrees with you. Nor is there any that disagrees with you. Because we've seen today that all the polling data was a load of complete nonsense.
It could be that Trump won because most Americans agree with him. The popular vote totals would suggest this is not the case. Rather, a majority of Americans in swing states either agree with Trump enough, or disagree with Clinton enough, to vote they way they did. It's going to take a long time to get to the bottom of which combination of those factors is what.
I would love to know what you actually agree with Trump on, as it's been shown again and again Trump doesn't really say anything of substance. Exhibit A: https://www.youtube.com/watch?v=_aFo_BV-UzI
So perhaps they are both failures and both the same, Hillary just did it on a bigger (more important) stage.
Clinton was a fine candidate to beat Trump, but she wasn't the candidate that matched the mood of the electorate. It's worth pointing out that the popular vote remains incredibly close, and Clinton may win it yet.