Simple explanation.
Once, the police were a police FORCE.
Yes, they forcibly trashed gays, POC, the disabled. But they also did get on with arresting perps and maintaining public order.
Today, they're a police SERVICE.
Their new modus operandi is to make up to all those groups they rode roughshod over in the past, hence the rainbow colours and spiels on hate speech/crimes.
At least in the past they were prejudicial with no bias, and got on with the job.
Now they have their exalted groups, meaning women remain bottom of the totem pole...then (good luck being a DV case in the 70s)...and now (good luck complaining about being assaulted at a LWS event today).
As for getting on with the job...