Hilarious to hear that we are justifying something that naturally occurs, but let's indulge the train of thought--

The elimination of death would necessitate that each individual would consume indefinitely, whereas the planet has finite resources. So, at some point, children must stop being born, and governments must either enforce infertility or make having sex illegal.

Animals viciously murdering each other for food is also natural, that doesn’t mean it’s preferable.

I would imagine if death were cured, a very small percentage of people would actually want to live forever. I imagine most people would want to live between 1x and say, 5x an average lifespan.

It's a silly question to ask.

Do you think about where you will go to the restroom 20 years into the future? No. Same thing with lifespan questions. You'll presumably die in some sort of accident.

Why is it not preferable for animals to viciously murder each other for food? There's nothing wrong with it. It's quite a beautiful thing once you understand the natural world.