Adding English

Here's an AP article by Erick Gorski about Hispanic churches which makes the point that immigrants learn English, and they do it regularly:

CHICAGO – On Sundays at La Casa del Carpintero, or the Carpenter’s House, they’ve raised twin yellow banners for churchgoers that read “Welcome” and “Bienvenidos.”

As a complement to the regular 11:30 a.m. Spanish service at the independent Pentecostal church, where they’ve worshipped Papi for years, there’s now a 9:30 a.m. English one where the faithful praise God the Father.

While churches from every imaginable tradition have been adding Spanish services to meet the needs of new immigrants, an increasing number of Hispanic ethnic congregations are going the other way – starting English services.

It’s an effort to meet the demands of second- and third-generation Hispanics, keep families together and reach non-Latinos.

Yep. Second and third generation Hispanics - like all immigrants - learn English. As Geoff Nunberg wrote once

English is too useful and important to imagine that any immigrant group would be willing to turn its back on it in order to maintain a marginal, ghettoized existence.

It just doesn't happen.