Finding that many beds, jobs, and teachers with room in their classes is hard to do. Even if every adult was skilled this would be a hard ask. Add the number of Americans who feel they are being ignored by the political class and we get a big ole stinking problem with lots of unsavory solutions.
The caravan is about 5,000 people. It's shrinking steadily. There are approximately 11,000 babies born each day in the US. This does not look like a real problem.