What kind of weight does "We are Romulans!" carry, anyway? (and exactly who said it, and in which episode?) We obviously heard it in English, but the notion that people from another planet would be speaking English among themselves is even more absurd than concluding, from reading the KJV, that Adam, Eve, Noah, Abraham, Isaac, Joseph, Moses, David, Solomon, all the Prophets, Jesus, and all the Apostles spoke Jacobean English.
Regarding the notion that RA was a bit of a nutjob, I wouldn't dispute it. Also self-important, and not the sharpest knife in the drawer.