Modern usage of animal products for food is purely for convenience and pleasure. A point could be made that that's sufficent, but it's objectively not necessary.
But my main point (which I started to write above but seemingly decided to omit, to my own confusion) is that this fear-cold-hunger-devour-alive-die-young bs is how wild nature works every day for eons. I am its creature and should see no guilt except for true sadism.
I agree with regulating bad farms away, but suffering through reduction of my already small demand to zero barely helps anything.
But they did not put them in cold metal boxes before to rot in their own shit.
edit: with meat factories I did not talk about industrial packaging of meat. That is fine. What is not fine with me, is having living animals on conveyor belts, who never see the sun or feel the earth.
At the same time I have no issues with animal resource factories. I justify their existence by the fact that I'm a carnivore and needed meat and fats to properly operate since forever, no need for complex philosophy here. The necessity to justify that against ethics usually means you got way deeper into it than is reasonable.