Sure, I agree with that. But at that point it becomes a philosophical/ethical argument: should we allow certain people to die (or even kill them) to benefit others?

There was a time (not even that long ago) when 50% of kids died before the age of 5. I can totally imagine people saying back then that this was the "natural order of things" and that allowing every kid to live would be disastrous to the environment.

My philosophy is that we should allow (and even enable) people to live as long as they want. I wish that were not controversial, but here we are.