What, according to John Tierney's "Angels in America," should be done about immigration?

I assume that you are asking about John Tierney's op-ed
piece that appeared in the New York Times in 2006.  I have linked to that piece
below.

In that column, Tierney argued that Hispanic
immigrants should be welcomed and treated better than they are now.  His basic premise
is that the Hispanic immigrants that come to America today (even if they are here
illegally) are no different than the Irish immigrants (and others) who came to the
United States in times past.  Tierney contrasts the life of Angel Espinoza, a Mexican
illegal immigrant, with that of Tierney's own grandfather, an Irish
immigrant.

Tierney argues that Hispanic immigrants are
simply trying to achieve the American dream for themselves and their descendants, just
as the Irish did.  He thinks that there is no reason to give them any less of a shot at
citizenship than the Irish had.  Therefore, what should be done about immigration is
that it should be welcomed.  Congress should let the illegal immigrants get on a path to
citizenship so they can help build the country like Tierney's grandfather
did.