Electoral reform not only doesn’t address root causes, it doesn’t even treat the symptoms. It hasn’t prevented australia or japan from having far right governments, hasn’t returned land to indigenous peoples, hasn’t done anything against inequality, hasn’t empowered poorer peoples. All it does is make the political bribery slightly more expensive.
At a deeper level, representative elections always result in an oligarchy. The wealthy / economically dominant classes are the only ones who have enough money / prestige to finance their campaigns and win the popularity contest. It makes any political system based on elections nothing more than political theatre.
This is basic stuff even the ancient greeks knew, and communists learned through trial and error, yet liberals in the 21st century can’t wrap their heads around it.
https://forward.com/news/462916/nazi-collaborator-monuments-in-ukraine/