Because death is essential to life, it is a cycle of energy trsnfer.
Animals have evolved fantastic means to kill and consume., research the TROPHIC LEVELS of life. I appreciate this is a scientific explanation, not religious. It depends if you want the true answer or not. Life csnnot rxist without desth ss proven by every living thing,
The jewish shepherds didn't know physics, so the answer isnt in their scrolls. it is a basic concept of energy, it can be altered but neither created or destroyed. Everlasting life consumes everlasting energy, there is not enough energy to have that.
To demand to live forever is to deny others to live. Ignoring this issue is to live in bronze age ignorance, akin to agreeing that adam was the first man 6000 years ago, simply impossible and rediculous.
great question ;) x