Your definition of 'left' and 'right' in politics is quite simply just wrong. Both left and right can descend into state control just as easily. Fascism, for example, is a far-right ideology.
I also don't know why you think Venezuela is less democratic then many other N Hemispheric countries. But having no comparison with which to judge I don't know how corrupt a country needs to be in order to register as 'very, very corrupt' on your radar.