Because I have loved ones that are living in this world and it matters to them, therefore it matters to me.
Have those people committed to not have kids until those issues are resolved? And have they set thresholds of easier, safer, more affordable to trigger their child rearing?
Most people don’t measure out futuristic measurements for society to get to before they feel comfortable having kids. Plus they will be at a different place and time, so things may change for them to be more comfortable. Reproducing isn’t the top priority for them, surviving is. It’s like Maslow’s hierarchy of needs. After the basic needs are met, they will have more energy to focus on kids.
I’m in my 40s and still don’t want kids, so I doubt that will change. The people I know that are young (teens and early 20s) might change their mind, but they aren’t lining up to have kids now. Some seem open to changing their minds later, but most of them say probably not.
I feel ya, I’ve always been a mix of “not ready” and “not wanting”. Then my perspective on what fatherhood even is shifted and I was able to unshackle myself from the Christian thing.
That said, if you don’t want kids for yourself then what impact are you having on those 20 somethings when you soapbox about how difficult and dangerous the world is?