If no one dies there will be no room for everyone
The question of the lack of place is an age-old question, to say that death is the solution is nothing but cruelty. Death is not a solution to any problem. It's like bringing an old woman to a hospital for treatment and the hospital will say that there are no available rooms and send her to die in the street, of course this is not said. No rooms available? You will find solutions.. Put her in the corridor for the time being, build more rooms, build more hospitals, etc.. Likewise on Earth.. The human race has not yet begun to cover even 10% of the earth's surface, let alone building to height, and inhabiting artificial islands on the surface of the sea And when all this is over, we will already build colonies on Mars and expand to the rest of the galaxy, we are not limited to Earth only. And if necessary, we will also limit childbirth for the time being, but death is of course not the solution.
Death is a natural thing, why fight it?
The same can be said for the development of drugs for diseases and for life-saving surgeries. Humanity has always used the intelligence it has been given to improve its life, whether it is a cover from the rain or clothes for warmth. Since when did natural become a good or desirable thing? Once we have decided that we do not desire death and it is no longer desirable, it is also "natural" to fight it.