I have a hard time understanding how a proponent of vegetarianism, presuming you are one, could be so dismissive of a technological advancement that will almost certainly lead to reduced meat consumption.
And I am not sure meat consumption is the problem.
Factory farming and industrialized agriculture are the big issues: the greed of the majority of the food supply causes death, destruction, and misery on beings regardless if you are eating kale or cow.
Eat pasture-raised & local if you care about the environment and your own health...
That is in contradiction to every major health organization in the US and abroad. Well balanced vegan and vegetarian diets are healthy and appropriate for every stage of life.
If you care about the environment and want to make food choices that minimize your impact, don't eat animal products, especially beef.