I have never heard a Rov who says someone who eats Chalav Stam is eating TREIF.
You may not have heard of it, but there are.
FYI if you have ever been to a dairy farm you would see there is no such thing as Chalav Akum, Chalav Yisroel etc. NOBODY milks cow anymore. Its all done by machines and automation.
What determines the cholov Yisroel or cholov akum status is not who milks it, but who sees or supervises the milking, so automation is irrelevant.