Looking to my own fellow citizens first and foremost, my first concern about a potential (and now certain) Trump Presidency was the effect it would have on Europe. I feel concern to my American friends too of course, due to his authoritarian ways. I wish you the best of luck guys! There's light at the end of the tunnel.
Anyway; I see either of two scenarios playing out here. But feel free to diverge from these and discuss other affects you think The Donald's Presidency might have for Europe!
1) Either he emboldens and boosts the advancement of the right-wing authoritarian populists movements that have been brewing across Europe far longer than the blitzkreig-version of that which is Donald Trump,
2) or he will actually help us by turning people away from it.
I mean in the first scenario he would lend legitimacy to them by helping to spread their distorted and twisted worldview advanced by the likes of Breitbart News, certain "news" from your Facebook feed or other sources of fake news.
The second scenario is - and don't underestimate this - that he rather awakens the anti-Americanism that has always existed among the Left in Europe (aside from Britain, but they're gonna be leaving soon anyway so, and their government already beat Trump to Trumpism) and thereby helping to boost their appeal. Socialists and Social Democrats in Europe loved to hate the American cowboy George W Bush. And, as much as Trump is an authoritarian strongman type of guy, he is also the perfect caricature of America in the eyes of the European Left. He is an unapologetic, overconfident, loudmouthed arch-capitalist.
And with all the years of austerity, what Europe really needs is not the xenophobic, scapegoating, protectionist, lying, neo-reactionaries of the populist right, but rather a fairer tax system that puts much more of the burden on the top 1%, and uses that wealth to provide good jobs for the average Joe in building infrastructure, in law enforcement, in education and in healthcare which grows the middle-class and boosts the economy as a whole. Low, middle and even high income earners spend more of their money on basic things that grow the entire economy than the super-wealthy who shop luxury goods, bank their money and invest overseas.
Are we destined to follow the US' lead, in which case what could have been a Bernie Sanders Presidency is a massively missed opportunity, or are we to be repelled by it?