Don't want to have children or having children has become a much larger economic burden? I want to understand your argument better - are you arguing in favour

Don't want to have children or having children has become a much larger economic burden? I want to understand your argument better - are you arguing in favour of replacement of population for the economic benefits (of who?)? So why would I - a person living in a country with my own culture surrounded by my own people - want to have adults from another culture with their own sets of values and morals over children from my own people?