I tend to have a more optimistic view of life and I have 3 kids. I want to support a world that makes things better for them. I’ve always found the “make less people” claim overly patronizing. It’s fine if you don’t want kids, but the kids today will be running the nursing homes, fixing the infrastructure and running the country when we’re retired. I want to help raise this next generation with good moral values and work ethics. I should be able to make that choice.
I think the idea isn't for everyone to stop having kids, but to reduce reproduction down to something near replacement rate, so population growth slows or stops.
There's nothing inherent about society that requires more people than the current workforce to run things in 20+ years, though admittedly, generations are not of equal size (booms and busts in the birth rate over time) and there are often demographic issues as particular generations age out of the workforce.
I too support people's desire and right to make choices about reproduction, but at some point it just becomes irresponsibly selfish for a couple to have more than some replacement-level N number of kids. Not just for the planet, but at a smaller level, too, when considering a family's financial resources, etc. I wish more would-be parents would take this sort of thing into account before choosing (or unintentionally not-actually-choosing) to have a(nother) kid.
