It would reduce the issue to ethics only though. Whether you agree with the ethics part or not, lab-grown meat will likely also require less resources and thus will be better for the environment (and it would also be cheaper if governments wouldn't support lifestock breeding with money). In my eyes that's the bigger advantage compared to the ethics question.
For the ethical part, I personally don't agree with the "killing animal for food" part. For me, it's perfectly okay to kill an animal for food and anyone who thinks I should stop eating meat is a problem in my eyes (if you don't want to eat meat, I won't judge, but please don't judge me either). Where I do have ethical concerns though is when animals are kept in bad conditions throughout their lives to minimize price. The impact is felt by humans as well, as those conditions often involve giving the animals antibiotics which leads to super germ evolution (and those germs land in the meat we buy to finally land in humans!). Hopefully we'll have minimum standards in the future for growing animals for food. Those standards will make "real" meat more expensive but most people won't care as they can eat lab grown meat.
For the ethical part, I personally don't agree with the "killing animal for food" part. For me, it's perfectly okay to kill an animal for food and anyone who thinks I should stop eating meat is a problem in my eyes (if you don't want to eat meat, I won't judge, but please don't judge me either). Where I do have ethical concerns though is when animals are kept in bad conditions throughout their lives to minimize price. The impact is felt by humans as well, as those conditions often involve giving the animals antibiotics which leads to super germ evolution (and those germs land in the meat we buy to finally land in humans!). Hopefully we'll have minimum standards in the future for growing animals for food. Those standards will make "real" meat more expensive but most people won't care as they can eat lab grown meat.