With all due respect, a couple of comments. Extreme conservative is an oxymoron. One quality of conservatism is its penchant for moderation and rejection of extremist philosophies. As for rhinocerotidae...what is that term meant to describe? I've seen it used here on other threads with obviously demeaning intent, but still don't know who or what it is. 
I actually typed a different term, a shortened version of GOP establishment, but apparently that term offends some people around here for some reason, so either some moderator changed it, or there is a macro that automatically changed it.
Rhinocerotidae simply refers to what I said, or the shortened version of the word rhinocerous.