Trump won a majority, and the GOP won the house and senate. It's not all US citizens, but if it's not a majority, it's close enough. Is it really a coup if it's what the majority wanted?
This is hardly a new thing for the US. The world has seen the US elect Bush Jr, who alienated the world with his desire to invade Iraq. Remember Freedom Fries? At the same time that was going on, Canada, which did support the US when it invaded Afghanistan, said that Iraq was a bridge too far, and refused to participate in that. The result was the GOP drumming up anti-Canada hate, people boycotting Canadian products, etc. Then in the years since Bush, the US has elected Trump not once but twice. This is who you guys are now.