Rav Moshe is Mattir “Cholov HaCompanies”. “We” (as in Klal Yisroel in America) is Noheg like Rav Moshe.
The Bach (and possibly the Rema) is Mattir Chadash in Chul. “We” Pasken like the Bach.
Who is “We”?
Most people that I know in America don’t eat “Cholov HaCompanies” and aren’t Noheg like R’ Moshe.
And the rise in Cholov Yisroel establishments points to a growing trend that way.
Although I don’t know about people eating Chodosh here, I do see Yoshon signs and I understand that it is common knowledge in certain places such as in Lakewood, when Shoprite’s flour becomes Yoshon.
I think what you meant to say is that there is a significant population that eats Cholov Stam and Chodosh in accordance with Halachic opinions, but there is also a significant population who does not in accordance with those who say not to.