1. More immigrants create more jobs, specifically when those immigrants are high-skilled. We should close the borders to third world immigrants, but not immigrants from first world countries, and we should favor white immigrants like we used to.
2. Because the amount of money in circulation could always be adjusted to reflect the population. However, in today's global economy, that probably wouldn't even be needed.
3. We don't need to expand the population, but right now so few people are having kids that the population is shrinking. Even if we're going to take race out of the question, we either need more breeding or more immigration.
4. But the birthrates are still dropping, especially among white people.
5. Nobody is arguing for that, but that is what's happening.
6. I hear ya, Thanos. But we also need to keep our population at replacement levels.