I think ReadctionaryFish summed it up well:
^left-wing = everyone I think is nice and whom I agree with.
right-wing = everyone I think is horrid.^
Often people just use the terms "conservative" or "right wing" as a box in which to toss anything bad or that they disagree with.
Some years ago, Boris Yeltsin was involved in a stand-off with some political opponents and confront them.
These opponents were hard-line communists. But in its reports the BBC did not refer to them as such, but as "hard-line conservatives".
Extremist sharia-supporting muslime clerics are often referred to in this way too, even though there's not much about modern civilisation that they would want to conserve.
The BNP is in favour of nationalisation, trade protectionism, workers cooperatives, does best in traditional labour voting areas and has in the past marketed itself as "the Labour Party your grandfathers voted for". Nasty yes, but right wing??
Of course you could say that being racist is by definition right wing but then you'd have to call Karl Marx and Friedrich Engels right wing. Engels thought that as the communist utopia developed, some races would just have to disappear as they would not be capable of suitable advancement. Into this category he placed Serbs and Scottish Highlanders.
You could say that extreme authoritarianism is by definition right wing but then you would mave to call arch-Fabian socialist George Bernard Shaw right wing. He thought economically unproductive adults should be gassed.