I think the problem is that nobody senior in the GOP thought that their membership would vote for Trump... and so didn't really have a plan to counter it, hence why we are here.
What is going to be interesting is the potential isolationist policy that he will follow - and possibly the similar shift from the UK with regards to the EU it's going to be interesting.
In contrast, the Canadians have elected a young, dynamic prime minister (Justin Trudeau) who appears to be doing well... although he is from a political dynasty, whilst I'm still trying to decide what the Aussies have ended up with (un-elected again... oh well...)