My understanding is the main report this all revolves around only showed a possible link between heavy Tylenol usage during pregnancy and a slight increase in autism diagnosis.
Its basically a nothing burger that's been thrown out to distract from the attack on vaccines and our Healthcare, plus all other sorts of actually serious matters.
The issue is, the more of the federal government he replaces, the less people/institutions there are to block him.
This only works for so long.