Well I'm as surprised as everyone else in the world. Honestly the popular/electoral vote inversion is always a surprising outcome, and even then, as far as this election goes, it is one of the closest popular votes in our history (<0.15%). When the election runs that close it usually seems to be a coin flip on how votes distribute across states.
Who are the losers? Well I think it's terrible that a person with terrible PR and no international respect (well at least from countries that we historically like?) was elected. But honestly, I imagine that the real losers are the suckers that Trump convinced to vote for him. I doubt he'll be appealing to them too much longer. Now that he has the power, he'll be running things as he sees fit. Evangelicals will once again not gain anything that they were promised, and hang onto the next race for that ever extending carrot of pro-life promises. Moderate GOP members of House and Senate will be making the calls, and they're going to pass moderate legislation that can actually move through a tight Senate.
The justice replaced is going to replace Scalia. Scalia's vote was obvious every time. No major court decisions will change.
People that thought they were blowing up the system will be disappointed to find that Trump is part of it. They'll see him working with Dems and GOP to rubber stamp things to make himself feel like he's doing something, and do nothing that his supporters actually want.