But do you not see how this will result in conspiracy theories? You are no longer engaging with the merits of a study and are instead questioning the motivations and source behind that study. You are shifting from a more objective argument to a more subjective one allow more room for conspiracy theories.
>Collusion is very real when billions of dollars are on the line and it is naive to assume otherwise.
Yes, which is why "do your own research" is often misleading because those billions of dollars have greatly impacted what research is available to you.
It’s fundamentally an epistemological question: what is the ontological basis for thinking we know something?
Once again this is thinking that doesn't go beyond the first layer. If this situation is possible for the first link, it is possible for the second and the third and everything on the first 5 pages. However deep this hypothetical researcher is willing to go, if there are enough billions at stake the manipulator can keep pumping out misinformation. They have a financial incentive to lie and no one has a strong financial incentive for truth so how does this researcher find the needle of truth in the haystack of lies?