It's estimated that 25% of the global population is subsistence farmers with little to no connection to the global market. AI is not going to impact every demographic, using it as a guideline for policy (or human psychology) is too risky to be useful. The dynamics of resource competition have not changed now that ChatGPT exists, people will not start tailoring their families towards AI unless it becomes a matter of survival. As-is, not a single person I know is convinced that AI will replace human labor in any meaningful capacity. The consensus seems to be, religious or otherwise, that AI is not a limiting factor in population growth.