Why are people so sentimental about killing consumable animals?

Especially those PETA people.

Consumable animals will be killed, and will eventually die to feed people but some people are just so sentiment and make unreasonable protests against this.

It doesn’t make any differences if you kill a cow by stabbing its throat till it’s dead, chocking them with water, or what-they-think is more human by using gas chamber. Seriously, It really won’t make any differences.

If one really love animals and support their rights he/she wouldn’t want those animals (admittedly consumable animals) to die, rather than suggesting a way to kill them.

Consumable animals will die no matter what kind of painful method is used, and they will no longer feel the pain after they became consumable materials. Cows in nature were killed by their predators. They will experience the pain from claws, bites, poison, etc. What make people think that can change their destiny anyway?

People are also so unreasonably discriminating about consumable animals. They are sure that killing a cow by stabbing its throat is cruel but a common killing method to kill a chicken by stabbing its throat isn’t cruel.

They’re also against people to kill unpopular consumable animals, such as dogs and despise those who eat them. As we know dogs are also consumable, some tribes have eaten them since ancient times.

The reason I make this question is because I heard that Australian government has stopped exporting their cows to Indonesia since they’ve found out that Indonesian people killed cows in ‘inhumane’ ways. We have our own ways and it has been practiced and approved by our government. It’s unfair to judge other countries for irrational reasons.

Overall, Why people can’t accept the reality that all consumable animals were to be killed and be killed again as long as there is human society? Please be logical, not emotional.