I remember when Vegan/Vegetarians were sneered at in the UK 25 years ago, but they aren't now.
In the space of 25 years it's gone from being rare to see veggie options, to it being the norm to have at least 25% non-meat options on the menu. Attitudes change, and once it's gone, most people will eventually find the idea of rearing animals to kill repellant.
If you can deliver me meat taste and texture without the environmental consequences of meat rearing, I'd definitely switch. I'd even pay a premium, though in reality it should rapidly become cheaper than the labor/land intensive meat industry.