Well, another solution to the industrial meat system is the industrial fake meat system. That may be a lot more viable in the short term than cultured meat.

Vegetarianism is a far far harder sell to Americans than "give up your practically worthless pointlessly large Trucks/SUVs that you almost never use for what the advertising portrays you using them as". It may be harder than "give up soda", "use bikes more", "don't live in the suburbs", etc.