I’ll ask my two questions again:
1. Would the poskim who disagrees with Rav Moshe now be mattir?
2. If a foreign country had the same manufacturing process but no government regulation, would it be muttar according to Rav Moshe?
It seems that you think the answer to these two questions is yes, but I would like you to confirm or deny, because the answer is no, and I don’t think anyone of authority says otherwise.
Your new category of “cholov hamachine” does not make sense since the issue was never who did the milking, but rather whether there was supervision ensuring cholov tamei wasn’t mixed in. Your new heter seems to based on a fundamental misunderstanding of what the gezeirah was.