You can be certain that the majority of migrants (particularly from Britiain and America) living in Poland wholeheartedly welcome its McDonlandisation; crass commercialization is their own heritage after all.
Erm, yup, sure, right, of course.... :/
BTW there are many, probably a growing number of thinking Yanks, Brits and othrtd who are no big fans of McWorld.
Most sensible thing said today.
McDonalds serves it's purpose for those who want a quick bite or tummy filler on the go. It's hardly a place someone would go dine out in everyday. There are many examples of fast food joints throughout Poland, from the "cabbage kiosks" which sell a thin slice of whatever meat product with half a pound of cabbage to your everyday pizza joints. It's up to the individual to decide where to eat if not eating at home. Can't blame the establishment for selling fatty food, you gotta blame the people who choose to go eat there.
As Harry says, there are plenty of decent cafes and restaurants that sell great Polish food.
Or just stay at home and cook your own dinner FFS :D
If you are complaining about the modernization which is part of Poland at the moment, then don't bother. As it is just part and parcel of the country's development. But as I've seen Poland has developed it's own unique way anyway. So no fear.