What was the presenter wrong about? And can't both be true? Developed countries need to reduce per capita emissions and developing countries need to reduce cap

What was the presenter wrong about? And can't both be true? Developed countries need to reduce per capita emissions and developing countries need to reduce capita increase. 1000 * 1 = 100 * 10 and 2000 * 1 > 100 * 10. Also on the plus side, reducing excessive population growth will reduce local resource need and thus local resource wars.