Admit what? Trump is open about the racial nature of deportations, and witnesses say the same.
If you want to bring stats into it, the baseline is to try to disprove what everyone already knows.
Assuming something is false just because it makes Trump look bad, in your eyes, is a very biased take on the world. Just listen to his own words, he's not ashamed of the racial nature of the deportations, it doesn't "make him look bad" because its a feature not a bug.