To say that some oddball calling for repeal of the 21st Amendment is evidence that culture conservatives are just as guilty of being pro big government is not being argumentative - but it is insulting, even if unintentionally so.
I thought the highlighted adverb was sufficient to identify the cited example as extreme and on the fringe. It certainly wasn't meant to be insulting. I was having a friendly conversation, not stridently trying to prove my point. Typos and dropped words aside, I'm typically fairly precise with language.
e·ven
adverb
(used to suggest that something mentioned as a possibility constitutes an extreme case or an unlikely instance): Even the slightest noise disturbs him. Even if he attends, he may not participate.
http://dictionary.reference.com