The same people who are complaining about the “Non-Daily” and the O-U D on the package probably wouldnt be eating those products anyway since it is not Chalav Yisroel.
I dont know anything about the Eidah Charedi chickens story nor do I know what the issue is, I am responding to the Tzaar Baeli Chaim issue. With the demand for Kosher meat at an all time high, Its not possible to meet the demand easily. It used to be you ate chicken or beef at MOST once a week on Shabbos (And for many even that was alot) now we eat meat almost every day and in amounts unheard of in previous generations