It's not about whether your kids will cause climate change. It's about creating children just in time for them to suffer through the collapse of civilisation.
We did not, that's the famously debunked hockey-stick graph claim.
Temperature has varied drastically throughout time. There were Vikings growing barley in Greenland, something completely impossible today. The reason you believe otherwise is because climate doomers lie a lot.
Jokes aside, I have heard both points made. Yours and the one from the parent poster.