I think the slavery ended mostly because its relative efficiency dropped as technology developed.
You'll see how fast acceptance of animal slaughtering will drop once we can get cheaper, provably healthier lab grown burger.
Yeah, because so many slaves were trained to be steam engine operators.
Slaves are only worthwhile if they do machine job and you don't have a machine and you don't have local population in deep poverty that you could just pay a little bit to do your thing and not care what they eat, where they sleep and whether they die or not. That's why slavery never realy caught on in Europe in industrial times. Europeans were cheper than slaves.
Think about cigarettes and tobacco. Fairly flat for a while, a few upticks, gradual rising, and then - in the last decade or so, this rapid increase in legislation and other means by consumers against it.
Part of it has to do with attitudes and understanding about harms, and getting the public to understand this. At some point it reaches this breaking point, but that also seems to correlate with technologies to allow for alternatives (witness in the case of tobacco the rise of vaping products, as well as tobacco-free nicotine products becoming OTC and cheaper).
While I think you are right that acceptance of "natural beef" or other similar protein will drop once a viable artificial alternative becomes available, it won't really take off until that alternative can replicate a good portion of the other products out there as well.
That is - for myself - all the artificial ground beef in the world won't get me to switch over and away from a proper well-marbled rib-eye steak, or a BBQ'd brisket or pork shoulder.
But if they could replicate those items as well, and do it at a comparable price, then I'm game for the change (which has been the downside to current analogues on the market - $12-15.00 USD per pound for artificial hamburger is not my idea of a financially sound choice).
I'm much the same for things like electric vehicles - just give me one that is off-road capable, 4WD, that I can lift and put on 30"-plus tires, and still give me a few hundred miles of driving range - and be inexpensive to purchase - then I'll do it.
Heck - even a cheap small 2WD pickup truck would be nice.
Not all of us want a sedan or sports car.
Otherwise the market would still have slave ships running.
Is it possible to speed things up? History says no.
But scaling things fast is a very new thing.
Islam took a few hundred years to spread from Delhi to Lisbon. That was before the invention of the printing press. The Reformation after the printing press, took a hundred years of war before most not all got along with each other.
Today Fortnite or what the Kardashians are upto spreads through the globe in a few months.
This is a new thing. And sooner or later someone will figure out how to infect minds positively at the same rate.