> I don't understand how every parent isn't filled with sheer, abject terror at their child's death from starvation, thirst, disease, or violence.

Sometimes the tech community just lives in another world. In reality: work, bills, screaming kids and life get in the way of thinking about anything but yourself. When I was 21 I was the same (vegan, vegetarian, telling people about BPA, not touching receipts with my hands yadda yadda yadda).

Now I'm 30 and as far as I can tell, nothing changed, I didn't die from too much exposure to plastics, the world still is spinning but I have a lot more on my plate to think about than watching documentaries and fear mongering myself into depression.