Hi Henya, thank you for sharing your thoughts and your early years lived in a kibbutz. As with all models, each has pendulum swings, extremes, those who abuse their priviledge . Society has evolved since capitalsim first appeared. Yes, "we need an updated story for the world" that addresses the growing inequality and better understanding of equity.
Access to healthcare and education is a basic human right—socialst in nature because it is offered all all. A healthy and educated society is a thriving society. In all things, balance is needed for the greater good.
Think of the Covid vaccine—socialist in nature, offered to all within a country, for the greater good.