I don’t find the idea of meat grown from cellular cultures frightening or disturbing in the least, but I recongnize that many people disagree with me.
I actually think it is the height of ethical treatment of animals, personally. The animals have cells harvested without killing them, and the meat is grown and cultured without causing harm to them. What is so wrong with that?
I think that it is a typical human fear of technology and science that is the sticking point in this issue.
We already grow skin for use on burn victims. Tissue growth for similar use is on the way and eventually organs will be grown for organ replacement. Why not grow meat to eat?