Science is not a belief system. It's meant to verify our assumptions and use new knowledge to check our currently held theories. We didn't throw away classical physics when we found out the relationship between mass and gravity didn't apply to photons; we established boundaries around the two domains of study. When we invented microscopes and observed nature beyond the naked eye, we verified the assumptions we had about our old models of microbiology, we kept what was observed as valid, discarded what was shown to be invalid, and came up with better models.
He's talking about COVID and the vaccines.
The thing he may not realize is that a lot more of us are working in these companies, in positions that allow us to make decisions on how those companies conduct their business. We actually get to see how the sausage gets made, and when **** that's not supposed to happen is happening, we sound the alarm.
See, for example, how Black AI researchers in the US warned about the deficiencies of facial recognition software early, which made communities more apprehensive about the use of such tools in law enforcement. If more Black folks worked for a lot of these medical companies way earlier than the 90s, the Tuskegee experiment may have been nipped in the bud in the early stages of the process.