Immigration is the one and only formula the United States has used to grow into the largest economy and among the highest standards of living in the world. I'm

Immigration is the one and only formula the United States has used to grow into the largest economy and among the highest standards of living in the world. I'm not sure why you imagine this strategy is suddenly problematic. "At which point we also haven’t solved the demographic problem that immigration is supposed to solve." I also don't follow the logic of this line at all. Why would new immigrants working and paying taxes and having children not help the demographic situation?