They’ve been overstepping enough on a regular basis for the last fifty years—the real problem is that they’ve subverted the “reform” process so that reforms that seem adequate to the general public get neutralized or twisted to work in their favor.
That’s why you have more-experienced reform advocates eventually pushing things like “defund the police”—they may be shooting themselves in the foot in terms of popular perception, but it comes from a long history of frustration with lesser reform efforts.