What difference does that make though? On Trump, for example, people who care about European perceptions and don't know yet how Trump is seen in Europe are probably non-existent.
Also, coming back to my initial point: outside the extremists and populists, I think a lot of the people in Europe who back the GOP candidate probably see US politics in the same left-right divide that they're used to at home, and hence think they back the candidate on the right.
In reality, the Dems candidate is probably much more like the candidate they support in their own country.
But then people being ill-informed about politics and politicians is par for the course, so not sure what I'm getting at with this.