I'd argue human factory farming practices are far worse than anything other predators do. Even cats that play with their food are better. At least that's relatively quick (a few hours at most). Humans frequently cause their prey to live their entire lives in tortuous conditions. The fact that the act of death itself is relatively painless is rather besides the point.
By all means, demonstrate it for us!
"Around a year later, the adult worm migrates to an exit site – usually a lower limb – and induces an intensely painful blister on the skin. The blister eventually bursts to form an intensely painful open wound, from which the worm slowly crawls over several weeks. The wound remains painful throughout the worm's emergence, disabling the infected person for the three to ten weeks it takes the worm to emerge."
https://m.youtube.com/watch?v=qNWWrDBRBqk
What a kind and selfless act!
A parasite doesn't stalk and hunt the same way a predator does prey. In this case, the larvae infect tiny fleas, which are then consumed by people and other animals drinking unfiltered water. It doesn't have a brain, as such; just a nerve ring and some sensory hairs that cue it to start eating once it is in the right environment.
Were you to provide yourself as a host to these poor and unfortunate organisms, you would doubtless attest that their impact upon you pales to insignificance compared with the misery imposed by our species.
In the USA, my understanding is that even small farms, using humane and environmentally friendly practices, still generally need to send the animals to a larger commercial facility for slaughter and processing. According to what I've read, this is largely due to USDA and/or FDA regulations that are cost-prohibitive to implement at a smaller scale.
We are not like other animals in this regard, we have the option to do better.
Or you know everything there is about infinity, other universes, how and where where "the playground" is placed (what's beyond its borders), what's the origin/meaning of life and so on?
Everything is meaningless and therefore we can do what we like? Even if it has no meaning to you, are you sure (deep down) it has no meaning for the lives you're taking (with your food choices)?
Why?
I don't know how others belief systems would explain that, but from a Christian perspective, humans aren't exactly the same as animals. We're like animals in that humans and animals are all creatures, and yet distinctly non-animal in that we're the only creatures made in the image of God, and given rule over all creature to promote the flourishing of life---human, animal, and plant---for God's glory. And the biblical story is that humans went so far off-course in rebellion against their Creator God that the Son of God had to become human, die, and rise again to restore our ability to care rightly for creation.
Thus, concerns to minimize animal suffering are uniquely human concerns because we /aren't/ animals, but human; and the concern itself is proof we're different from other animals.
As for the stories humans invented to explain their grace and their horribleness I can't say much. Only that we are very creative in that regard.
1. https://www.ciwf.org.uk/factory-farming/animal-cruelty/ 2. https://ffacoalition.org/articles/dangerous-conditions-facto...
IDK if you've ever slaughtered a sheep the non-slaughterhouse way done where most of the people live (i.e. the third world). I've done it out in rural asia. You take a long blade and pierce the heart / surrounding blood vessels straight through the chest. It takes a second or two for it to pass out. The slaughterhouse is a slight upgrade with basically no suffering at the time of death as they're instantly knocked out by electrical impulse.
If I were the sheep I would definitely pick the slaughterhouse over being shipped alive to the average end customer which is someone in the third world with a long blade.
Not in total of course, but per life taken.
Nature, red in tooth and claw.