Do you have a link to that estimate? I think the impact will be considerably larger than $88B. It's possible that the $88B is the GDP produced by the deported people, which is way less than the true cost because it doesn't take account of disruptions.
If meat packing pants close or reduce output significantly, there will be a GDP hit to the entire community. And there will be a GDP hit to restaurants who can't serve food that they can't buy, to grocery stores who can't sell food that doesn't exist, and so on.