Border patrol has averaged around 200K apprehensions per month for 2 years now at the southern border, that doesn't even account for the people they didn't apprehend. Not sure where you got the 100K annual number but it isn't even close to accurate
Well the question is what is the number who make it through? The number captured isn't relevant. If they captured 100% then the undocumented immigration number would be 0. Then we also need to know how many self-deport back over the border.
https://www.cbsnews.com/news/immigration-border-crossings-us...