WPOD and SDI resulted from the dwindling number of Irish Along with a big influx of Asian and Filipinos starting in the early-mid seventies, especially below sunset blvd. These conditions created a west side story type friction In the lower sunset throughout the 1970's. I clearly recall a big gang fight in the middle of noriaga St one night between the white kids and the Filipinos Around 1976. Prior to the 70's the sunset was 99% white and largely Irish catholic. For the first 30 yrs or so minorities were not welcome In most of the sunset. I have a friend whose family were some of the first African Americans to buy a home in the sunset in 1962. He still has painful memories of racist graffiti written on the garage door and garbage dumped in the driveway.