I won’t eat a Chipotle. They hire illegal aliens and their health standards are zero.
I haven't been to Chipotle for a while but I did go there quite a few times and never had the impression they were employing illegal aliens. It seemed more like the workers were just very young people, maybe a lot of them on their first job and a little careless.
In contrast, at one of Chipotle's main competitors, I often had the impression that a lot of the staff might be illegal aliens (although they seemed to be very good workers), and one time it appeared that almost the entire staff had changed and a new poster from an immigration agency appeared on the wall.
I used to manage a 24/7/365 food store that has a great deli. After the local Chipotle would close for the night the their employees would come to my store to buy our deli sandwiches and other food.
To a person, they were all filthy and looked like they had low-crawled all the way to my store.