Stop thinking readers and start thinking market.  If you are looking for a house, you look at the House section.  Ditto cars.  The rest of the paper doesn't matter.  Advertizers couldn't care less if the paper gets read, they just want response to their ads.

But you are right, print revenues are rapidly eroding.  Still immigration occupies a big part of media corporation marketing strategy and has for the past 40 years.   Also, some of the media corps own ethnic papers.

Cheers,
John Meyer