There's only one real demonstration that will mean anything - recall the council. It will not just put an end to the nonsense there, but no one else will risk their seat to make political points.
I bought my SUV in a car lot in Huntington Park that;s owned by an ex_Mossad guy who also sometimes moonlights as security for the Rolling Stones and Britney Spears. H park is mostly wetback country and is also a screwed up place at night-—they shoot black people there as “sport” and you will not read about this in the papers.
I;m actually surprised there are Americans who care about their city and want to knock some sense into that council.