775 per day for four years is more than the average american makes in a lifetime. Its over a million dollars. The permanent recurring cost would be negative in the form of the income taxes 73% of these people would be paying if they were free. The moral argument is clear, but there is no logical economic argument on your behalf. Its not even close. The cost of detaining these people is astronomical and we aren't even counting the money being spent "securing the border" and funding ICE which is money that could instead be spent replenishing the resources you say these people are a burden to.
Since Flying Hellfish refuses to remove this off topic post, and I refuse to continue off topic in the original thread, I have decided to split this off into an on topic thread in order to respond.
You lack basic understanding of logic let alone economics. Your statistics are not only unsourced but consist mostly of non-sequiturs .There is a HUGE difference between a larger short term cost compared to a long term recurring cost. You are extrapolating a short term cost out perpetually as if it is a permanent cost when it is not. Illegal aliens are only temporarily being detained before deportation, they are not held forever in detention centers. This is the kind of logic toddlers can grasp but you seem to have problems with.
"Deportation vs. the Cost of Letting Illegal Immigrants Stay"
https://cis.org/sites/default/files/2017-07/deportation-vs-stay-costs.pdf