First, I would ask that you cite toe sources of your cut and pastes.
Second, if you are going to continue to attempt to prove a point with statistics, make sure they are relevant I corroborate your point. In 1920 Los Angeles' 57 thousand population represented only 1.6% of the state of California's 3.5 million persons. That LA was then a "bastion" for WASPs doesn't pass the so what test. Further, California today has the same percentage Catholics as an actual bastion of conservatism, Texas which does pass the so what test.
Peace be to you
If you are going to quote then quote the “1930s” and “Well into the 1970s, Protestant denominational leaders enjoyed comfortable, influential ties with the city is still-strong “downtown business establishment,” which itself was largely Protestant.”
and then “The Immigration Act of 1965, however, created the condition for a radically different religious future for the City of Angels-a future that would anoint Roman Catholicism as the area’s dominant religious group. Today Roman Catholicism is the single largest faith tradition in Los Angeles County, with 294 parishes and 3,631,368 adherents. Among Christians, 71% are Catholics. Between 1980 and 1997, Roman Catholicism experienced a 36% growth.””
Then you can look at that 2004 election breakdown at the Catholic versus Protestant vote.
How did the members of the Catholic denomination vote on those pro-life issues?