I believe that Yeshiva University’s Rabbi Herschel Schachter, who is a Rosh Yeshiva at RIETS, is a das yochid in maintaining that all milk in America, both cholov yisroel and choloc stam, is TRIEF.
Funny that the parents and grandparents of today’s holy chasidim imbibed TREIF milk before cholov yisroel became easily available in first New York City and then the rest of large American cities (late 60’s and early 70’s).
During those years, all yeshivos- both chasidish and litvish- served cholov stam. Thank Noach Dear for bringing prices down in New York City and Rabbi Yoseph Tendler for pushing cholov yisroel in Baltimore.
When traveling, G’dolim in America were known to be machmir and have coffee served to them at rest stops in paper cups but did not forbid coffee served in china cups to others.
Those were the years my friend.