Pastoral, hunting, and fishing communities do not respect cultured meat. They hate the idea of being separated from the land and their animals like that.
Vegans can be connected with the land. I can grow nuts and legumes and grain, I can't really culture my own flesh. I can share the same connection with the land as my community without hurting animals, but an alchemist with their homunculus burger will face a much greater obstacle to acceptance.
I am highly skeptical that there's any significant cultural buy-in for cultured meat.
Sure, the working class is huge. There's all kinds of people.
Still not the norm. Normal workers do not know or care who Soros is, what Davos is, or who the email recipient's husband is.