Romney’s “perfidy,” to use your word, is only bound by political expediency.
Bound by political expediency means no boundary at all.
Strip all your posts down to their essential message, and each one can be distilled to Romney's perfidy knows no bounds! (RPKNB!). In EV's world, all other candidates number among the angelic host, and are crowned with virtue. Romney alone is the embodiment of deceit, his each and every action and word only provide further proofs of his inquity.
You claim that your jeremiad against Romney is motivated only by love of conservative principle, but that doesn't wash. Where Romney has been conservative you give no credit. When other candidates stray from conservative principles, EV crickets chirp.
So if it isn't conservative principle that motivates EV's Romney animus, what is it?