I ask this question because many anti-natalist points have in the last years gone mainstream and this includes the view that it’s unethical to bring a child into our current messed up world. I myself have had to battle with this view because me and my partner have wanted children since we were children ourselves and being challenged on that from a ethical perspective have forced us to really think about it closely.
When I think of my own birth I view of it as a very positive thing. I really can’t say life has been perfect or without troubles but I mostly enjoy life as it is both today and when I was younger, even with everything going on. So would I have chosen to be birthed again? I absolutely would! However this does not support myself having children because this could only rectify my own parents decision to have me. While I do know I have enjoyed my own life I can’t know in advance if my future children will enjoy life. The question is, will my own children born in the 2020s have liked to have been born?
This is of course an impossible question to answer since it requires predicting the future. I think 2015 was better than 2025. But how will 2035 be? How about 2100? My potential children will live so far into the future it’s incredibly hard to know if the world will be good or bad at the end, or even the middle of their lives. However if a life is not worth living it must be an absolutely horrific and torterous experience. Is that really where we are headed? Is it really gonna get THAT bad? Well that depends on how optimistic/pessimistic you are. No one actually knows what it is gonna be like.
There is one point however that I think is not discussed enough and that is about who are the ones having children? No this is not about the immigrants or muslims or whatever you have heard from the far right in regards to this. No this is about the fact that today if you are conservative, without a college degree and highly religious then you’re much more likely to have children. If all of us liberal and educated folks stop having kids what will the world look like? According to current projections the US will be majority amish by 2233. Is that the future we want? If conservatives and especially ultra-conservatives are the only ones having children then the liberal movement will have to be fighting an uphill battle if their only members are “converts” from those brought up in conservative households. That can’t end well can it? If I manage to raise reasonable and well brought up people, then that will improve the life quality of other people as well wouldn't it? But at the same time I can't expect my children to become future politicians who will save our decaying world. What are you all's thoughts about this?
Well what is a mental illness? Historically you had an illness if something caused you to not function properly at the things society expected you to function in. You can't remember things clearly anymore and it affects your career or social life? You now are considered to have the mental illness of dementia. Are you just slightly forgetful but can still function fine? You are not ill, instead that forgetfulness is just a character trait of yours. And it goes on like this. Back in the day the expectations to marry the opposite sex and have children was huge so being gay was considered a mental illness. Today it's more accepted and being gay is just part of who you are (in some places at least). And it goes on like this.
I think not much has changed in this regard. If a certain mental affliction doesn't affect your social or work life in a meaningful way it's not really considered an illness. So if you take this as a definition of being mentally healthy there are certainly lots of people out there who have no affliction which seriously hurt their current social or work life. However this of course doesn't mean that these people are completely free from any mental affliction, it just means these mental afflictions are not considered serious in today's society.
And these things change all the time as society's expectations change. Back in the day when only a small minority could read and write there was not a diagnosis for dyslexia. Now that reading ability is expected of everyone in today's society we have defined dyslexia. As new societal expectations come and go the list of diagnosable illnesses will certainly have things getting removed and added. Let's say theoretically some people can't handle zero gravity, today this is not relevant for the vast majority of people so there is not any diagnosis for such an illness. But if more and more people are expected to live in zero G then such a diagnosis would be sure to be defined if such an affliction exists.
Is this definition reasonable? Well that's a completely different question. But as I see it this is how it is generally defined right now.