I'm not saying the north american lifestyle is sustainable. Just that planet Earth can sustain 7 billion people if things are managed a bit more efficiently.

I'm well aware that our lifestyles are causing suffering on the other side of the planet. And I solemnly condemn spoiled westerners that have the gall of telling the people they cause suffering to to stop having kids (because those faraway regions is where population levels grow the fastest).

Malthusianism, like eugenics, is half-baked. It's surface-level ideology that offers no real answer and is more of a feeling than anything with nothing concrete to show for it. Push it to its logical conclusions, and you get to nazi-style forced sterilization and similar policies. And you still didn't address climate change.