I’m not sure the problem is the electoral system so much as it is the people who vote.
I’m not saying that voting is bad, but even if you tore down the system and replaced it overnight with something better, it’s not gonna change the way people vote. They still vote in neoliberals and conservatives and fascists.
People on the left will have more options further left, but people on the right will have more options further right.
Fixing the electoral system is still a thing to strive for, and it’ll be a positive change; just temper your expectations