I agree with your first paragraph.

I believe though that the UK remains a multi-party system. And heck, even their Labour Party tossed out George Galloway for his anti-Iraq war stance. Would an extension of your view make the US a socialist state since the liberal D's are now 'in control'?

Epithet: any word or phrase applied to a person or thing to describe an actual or attributed quality. "Hurling epithets" // stating facts -- there is a difference.