Leftism: the love that dare not speak its name?

I've noticed that those on the right and conservative are quite happy to be categorised as such whereas those on the left are awful coy about it, and even insist that they are not on the left, which rather confirms me in my belief that leftists are:

shifty,dishonest,equivocating,dissembling,serpentine,satanic,lying,sub species of fecal matter!