Bruh. It's a number between 0% and 100%.
I'll make it a yes or no answer to help you, and we'll narrow it down from there. For example, are you willing to accept a 50% false positive rate? Yes or no? Ex: For every two people convicted and jailed, one of them would be convicted and jailed erroneously.
Why try to counter with a "no u!" It makes it look like you know deporting people falsely is bad. Why not just change your position instead?