What would be the consequences if President Trump came out forcefully against the poison? Would anyones mind be changed?

Those who support the President have known all along that the shots are poison, designed to kill and enslave. They also know of effective therapeutics.

Those who oppose President Trump wouldnt listen.

Those on the fence needed to learn a hard lesson.

So would there be any less of the poisoned? Would there be less children poisoned?

I dont think the numbers would be significantly different. The only result of his forceful condemnation would be ammunition for the propagandists and the hardening of the stances of those that may be otherwise swayed by the dramatic and conslusive information that can be found with the slightest bit of curiosity and openmindedness.