If talking is impact there is an impact.
But it makes the word kind of meaningless (a common issue).
All I know from them is their words... Which I hope we can agree where kind of negative (I personally prefer not to be a cancer hbu ?)
There is no such thing "as a species"... It's not like we are ants...
Some groups of humans/individuals are net neutral, some net positive and most net negative.
The question is always about incentives and externalities... and not what we as a nation/city/... Whatever prefer but what we are willing to stop doing...
At the end of the day the world is the way it is because the people who choose the game are the ones who keep playing it.
The thing that got me with his comment is that he based on his website is relatively succesful... Unlike this fake belief that billionaires hold all the power it is in general the 0.1% that hold the power... With the consent of rhe 9.9% and he's most likely 9.9%
...
This not having kids as a noble sacrifice is just choosing to be weak tbh unless he's actually tried but if that is the case it's definitely not in public.