Here's an interesting article comparing some different approaches to border security: https://leitf.org/2021/04/enforcement-priorities/
This constant "crisis at the border" bullshit is so tiresome because it is the same as all those other hot button bullshit political talking points like "get tough on crime" or "family values" or "protecting our children". It is the eternal ongoing crisis that we can be concerned about without ever having to worry about any real solutions presenting themselves. This is a good distraction from other more pressing issues like the alarming rise in homeless population or the ever growing wealth gap.
Further, people don't seem to recognize that US foreign policy had a direct influence on the number of people trying to get across the southern border. So many resources and efforts were put Into destabilizing every part of Latin America, that the consequences are still being felt today.