As an American who voted for Clinton I am not terribly worried about a Trump presidency.
Here is why:
I'm white.
I survived the Bush years. Almost everything Bush did in his 8 years I was totally against. Almost everything. Mainly it was the wars. I liked his immigration and immigrant policies. There was the dismantling of the budget surplus, housing bubble, and the market crash because of the policies from that era and it hurt me yet I'm still economically viable despite it.
I suspect that, with Obama and every president who promises things to get into office, there is a reality that they all must face. Things we the public cannot see. The briefings that Trump is getting right now are going to sober him up to the reality of the office of the POTUS' real responsibility and reach of power. Even with a Republican controlled Congress and Executive branch our political system has balanced power between the three branches that includes the minority party to even then have a say.
Four years is not a long time. I suspect we will be better for all of this in 2020.