A quick google search told me that 12 US presidents where slave owners. So far I think none of their statues have been torn down because of the fact although slavery is almost universally outlawed and condemned. For shorter term analogies I think something like gay-marriage fits. "Progressive" countries allow it, while the more "backwards" or religious countries fight it. I guess it will play out something like this (And you habe to factor in that in case of lab-meat it will probably more expensive at the start, so people and countries have to be able to afford their morals - or eat vegetables I guess).