I don't think you can just separate out climate change from everything else that's going on in the world—and even if you could, the result would be meaningless.
So the poster above is noting that if people were, or we would have, been okay with having kids in the past, then we still should today.
"Is it still OK _for the planet_ to have kids...", not "Is it still OK _for the kids_ to have kids..."
EDIT: actually, I'm not sure which one of those the representative was getting at.
That's a strange question. The planet doesn't have feelings, so it doesn't really care whether or not we have kids.
Other living organisms on the planet may care. But the rock we're on surely doesn't.
This is exactly why it misses the point. Having kids is a significant contributor to carbon emissions, and therefore climate change.
50 years ago was the golden age to be born in the West imo.
I disagree. The western world was more violent, racist, and less tolerant of women/minorities 50 years ago. Average life expectancy was also ~10 years lower. None of these are 'perfect' today, but they are much better overall than they were during your 'golden age'.