IMO urbanization broadly includes secularization (consumer culture), education (needed for urban jobs), education/empowerment of women working (two jobs to surv

IMO urbanization broadly includes secularization (consumer culture), education (needed for urban jobs), education/empowerment of women working (two jobs to survive rather than one, women work to survive in cities rather than stay in extended family homes) But of course you are correct. Urbanization is responsible for the largest population migrations and geographic redistributions of the last century. I consider it the major factor in the demographic birth rate declines.