Not sure about ignorance, but it does seem like the 'us vs. them' mentality is pervasive among many FAs, not just at UA. My sister-in-law is a FA for a different airline and to her all passengers are 'Jethros' (her term). She despises the flying public and retains her position solely for the benefits it accords. I have to admit though, living overseas, that I just don't see much of this on the airlines I routinely fly - LH, SAS, TK, and Gulf.