People should deal with the reality of the history of the LAPD and not an idealized version of what they think it was. The LAPD had been out of control for at least 20 years prior to King. They were rude, racist and acted outside the law for a long, long time. They had KKK newsletters among themselves, for God sakes.
The LAPD is not an organization brought down by PC. It was brought down by Gates, his unions and their predecessors.
The LAPD for many years, under Chief Parker and Chief Gates, was a model for PDs across the country. Chief Parks and his predecessor were both disasters and, from what I've seen so far of Bratton there would appear to be no basis for optimism. Bratton is a liberal NY gun grabber more interested in being PC than pursuing law enforcement excellence.