I personally eat meat, but I suspect very few people will a century from now - not meat from a slaughterhouse anyways.

No, we'll grow meat cheaply in labs, and the companies who produce it won't have much trouble blackening the reputation of real meat. Most people, even today, like to dwell neither on the death of the animals we eat, nor the cleanliness of the factory farms that provide us with our meat.

It probably will appall people in the future that we killed animals just to eat. They won't have first-hand experience of our time. They'll know, on a cerebral level, the technical reasons that fake meat was impractical, but, on an emotional level, our habits will disgust them.