Are they really excellent? Kebab shops elsewhere in Europe are often associated with shady dealings. For example, in Finland a family will run one for a while for immigration fraud (while also dodging taxes), then hand it on to another immigrant family for rinse and repeat. Naturally, they serve the lowest-quality food they can get away with. In Poland many are owned by a mafia using exploited Bangladeshi labour to operate them with zero concern for food quality.
Modern döner-kebab meat is rarely the quality shawarma of a century ago. It is highly processed and basically a big hot dog.
Kebab stores, local entrepreneurs unwilling to hire a local and pay EUR 1500, private universities, slumlords. That's how immigration and visa frauds operate in Poland, yes. Then immigration and visa fraud is only on the surface, behind there is likely some more serious organized crime.
Yes, they are really excellent.
> Kebab shops elsewhere in Europe are often associated with shady dealings.
No they are not, but there's a lot of racist propaganda that says they are!
Are you saying a hot dog flame kissed and scraped off with a knife and dumped into a pita with some yogurt/garlic/mayo/what have you sauce would not be delicious? Come on. People outside the US act all high and proud about the hot dog but literally every meat eating culture has some other scrap meat dish, sometimes its the whole anus rather than minced and put in a casing for you. Waste of the animal to throw out fine meat if prepared well.