Intentionally driving over someone and accidently doing so both have the same result but I don’t think you would claim that there is no difference. Intentions matter even if the outcome is the same. I’m not judging your choices but your reasoning.
In my opinion this applies to having children aswell. No one is under any obligation to have kids and there are plenty of valid reasons not to do so and this can be anything from financial, time saving or just personal preference. However, to me it’s hypocritical to justify not having children by essentially claiming that their life wouldn’t be worth living but at the same time you yourself continue your existence here. You basically set standards and then don’t apply them to yourself.
Infant mortality used to be insanely high before modern healthcare and medicine. There was no social safety nets expect for the community around you. There was no gurantees about access to food and clean water not to even mention education. Looking at virtually any metric life has never been better and yet people say “it’s not worth bringing children into this world”. I’m sorry but to me that kind of thinking is just insanely cynical and misjudged.