From Pitchfork’s review of Contra:

‘Though, as Pitchfork editor Scott Plagenhoef pointed out in 2008, the band’s detractors probably wouldn’t be nearly as hung up on Ezra’s lyrics if the people in Vampire Weekend’s songs— or the people in Vampire Weekend— seemed poor’

True. And if they listened carefully they’d realise that a lot of it is about challenging upper class American pretentiousness.