Liberal isn't a dirty word, it's not something you're branded with.
It is in some circles.
Not intelligent ones.
In a large (but shrinking, year by year) part of the country, it most definitely is.
Those aren't places most people want to go, though.
Neither is "socialist" but that isn't stopping anyone...
According to who?
It is to the sort of people who might perform such branding.
In denmark liberale are considered to be right wing...
At some point in the early 20th century they flipped it over here. A "rebrand" of sorts.
That's not what he meant - he meant (I think) that a US liberal is still considered right wing in Denmark, i.e. that the Danish 'liberals' are US 'pinko commies' and US right-wingers are in Denmark either 'capitalist oppressors' or 'crazy religious extremist', or both, depending on context.