people who are working in conventional meat production right now

The industry is ripe with conditions that at least approximate human trafficking and anything lab-grown sounds like basically completely automated, and where it isn't you need highly skilled professionals. Not of the "is dexterous and can learn to make a clean cut fast" kind, but of the "degree in cell biology" kind.

Jobs for people without advanced education are getting rarer and rarer, that isn't going to change, and don't look to industry to change that they have the exact opposite incentive. If, OTOH, you introduce something like an UBI soon you'll have a gazillion people getting into pottery or knife or furniture making or whatnot, again doing actual crafts because it's economically feasible because you don't have to sell your stuff for prices only rich people can afford just to make a living.