You might be pushing a narrative, not the truth. If restaurants in general are on such margins that behaving badly is the only way to keep them in the black an

You might be pushing a narrative, not the truth. If restaurants in general are on such margins that behaving badly is the only way to keep them in the black and immigrants are capable of spotting this as quickly as native citizens or more so, then what you're observing is capitalism crowding out good places and replacing them with garbage, and immigrants gambling on the prospect of taking failing places and making them succeed in the only feasible way. If you then take this situation and spin it as wicked immigrants ruining everything, you're in the wrong and pushing a narrative for your own purposes. There are analogous situations in the context of inner-city crime and whether that's down to racial or economic drivers, and people who ignore economic drivers to attribute everything to easily spotted racial signifiers. Pushing a narrative.