Immortality? Humans aren't meant for that. We are not designed that way. Heck making it to 100 with all of you faculties is still quite the achievement.
My grandmother almost went that distance, physically she could have. But she was born in 1920, the city she lived in her whole life was built by her grandpa and funded by her husband's grandpa. They were born in the same year, knew each other since they were babies. He died 36 years before she did, but she had her kids and her friends and her siblings and their kids and then the grandkids came.
And then every one she knew began to die of old age, one after the other. She spent her summers playing cards on the beach with ruthless old hags and by the time she turned 95 she was playing solitare in the same pavilion they had been playing at since 1939 when they were teenagers.
She didn't recognize her home city, a place where she drove the first sports car in the city when she was 8 years old. She didn't recognize the streets, she didn't know the buildings and houses. All the high rises didn't exist and the kiosks and pharmacies and stores were all different with different families than the ones that she had known multiple generations of.
her oldest grandson became a grandfather, her great-great grandson was born in a hospital across the street from the one all of us were born in, that her father built, because protectors many who received Healthcare there all their lives had burned it to the ground.
The people got meaner, weirder, she lived to see non binaries and trannies and she lived to see everything go back to the bad old days when leftists took over and bombed hospitals. Lived to see her husband, her best friend from childhood, the father of her kids. A man was so well loved they had to close 7 blocks around the cemetery when he died due to the sheer number of people who came to say goodbye to him. People that he personally helped because he loved his hometown. Get turned into a villain by revisionist pieces of shit.
She lived to see her younger great grandkids ask her if her best buddy, her soulmate was a monster.
She died because she was the last remnant of a dead century, the last of a generation of builders. She died because she was surrounded by loved ones and was watching them turn into strangers. Not because they didn't love her, we all did. But because she couldn't communicate with them anymore due to the gulf of time.
She was exhausted by the end. Being cared for her by my aunt who herself was 71.
We aren't meant to exceed 130, I think. Because we end up aliens in our homes.
That they're obsessed with immortality tells me only that they aren't men. Not really, no man would want to live through what I just described above multiple times. Living through that once broke the strongest woman I ever met.
Only something absolutely inhuman would be fine with it.