In my mind Trump by himself isn't a huge deal. There are plenty of people like him in America. The biggest issue is that there are so many people in America who not only condoned his behavior, but encouraged it to the point that he was able to become the POTUS when he is woefully unqualified (not under-qualified, unqualified). Even if he gets impeached there will be another one like him ready to take his place.
That is why this election was such a failure. When somebody like Trump rises up utilizing the type of dialogue and rhetoric that he displayed throughout the past year and a half, you have to systematically crush it so it doesn't prove acceptable for the next person. America failed at that task, and we will now reap the side effects from it for quite some time. Let's hope the problems in America stay like they are this week (Trump just being an ass to the media and drumming up his own hoopla) and don't evolve into worldwide problems that the next President can't fix.