First of all - thanks for thinking about this critically and choosing to reduce your meat consumption.
Humans evolve and we create new technology that allows us to live better than we did in the past. We have reached a point where a lot of humans on this planet don't need to kill (or pay others to kill) to survive anymore. It's mostly about taste and pleasure - not survival.
Ethan Brown - founder of Beyond Meat - created his company because he knew you can't change culture overnight. But if you offer something that is like meat or better and cheaper then people would switch.
If you live in nature and you need to hunt or raise animals to survive - sure you got to do what you need to survive. But a lot of us are not living under those conditions anymore.
Factory farming is causing a lot of destruction and we need to find more sustainable ways to feed the world.