At the end of the day, we have to radically transform society, and we have to do it fast
No, we don't need to radically transform one, single society, we need to transform hundreds of separate, distinct societies. Yes, we live in a highly globalized world, but there is not one, global society, with one culture, language, nationality, government, legal framework, etc. There are nearly 200 independent nations on the planet, each with their own culture, needs, ambitions, goals, ideology, and beliefs, and many of these nations are in direct competition with one another. There are several nations directly competing, in a zero sum contest for global supremacy.
I suppose many people see US (or more broadly "Western") global hegemony as essentially the same as a single global society, but that hegemony was not chosen by the world, it was imposed on them, and there are several nations aggressively trying to challenge and ultimately destabilize said hegemony.