I haven't given a shit about previous US elections. This one, I do.
Like it or not, the US is the nation that leads western philosophy and ideals. In many ways, they represent the west. With the current senile, lying, racist fuck head in charge of the leading western nation, it makes ALL western nations look bad by comparison.
Furthermore, Trump's bullshit flavour of fascism is spreading to other western countries. Canadian conservative politicians in particular have started pushing this shit, forgetting that we're not the United States, nor, pray to God, we ever will be.
If Trump wins, the fall out will be the continued decline of the west. If Trump loses, the fall out will probably be mostly contained to the US, possibly in the form of right wing white nationalist terrorism.