Indeed that is not science, and it contaminates the good name of real science. What is apparently, is politicized [esudo-science.

Now, Vitamin D is not a huge profit source, so why on earth would any one want to bother to take it down unless it countered some one's agenda, and hence Vit D probably DOES help counter covid. But we all know they do not want anything that would reduce claimable covid numbers and thereby extend the lockdowns.