The world is over-populated, and the most critical part of the future might be the imbalance in demography within the age groups. At a particular time, the young population will be less, and the aged population will be more. Another critical part is our existence; modern lifestyles are very much linked and dependent on natural resources that are not unlimited but limited.
More than half of the global population growth between now and 2050 is expected to be in just eight countries – the Democratic Republic of the Congo, Egypt, Ethiopia, India, Nigeria, Pakistan, the Philippines and the United Republic of Tanzania
https://www.weforum.org/agenda/2022/08/population-populous-countries-india-china-2030