You know who also had "their own newspapers, supermarkets and entire towns of their own" in the beginning, in America? The Germans. Look how terribly German-dominated America is today. Well, no, it isn't, because that's just what happens over time, the inital parallel societies slowly dissolve as some people move in, some move out of there. Nothing to worry about

And quoting one activist is not enough to infer what all people of a certain culture group think, you should know that. Otherwise by quoting a neonazi German immigrant you could make the case that all German immigrants hate America and wish Hitler would have won or whatever.

Besides, Linda Sarsour was born in Brooklyn, so..