When he first learned about mRNA vaccines he misunderstood them and was concerned about vaccines "basically modifying people's DNA and RNA to directly encode in a person's DNA and RNA basically the ability to produce those antibodies". This is technically ignorant to the point of being nonsensical, but to be fair he was a layman speculating based upon very limited knowledge about something he just learned about, and it was a casual discussion during the very early days.
And let's be fully clear for the antivaxxers among us: Every single plutocrat that pulls the levers that get you riled on your march to becoming Soylent Green got the vaccines. Every single power broker got the vaccines. The antivax nonsense is specifically the realm of the bottom-feeder easily conned contingent, manipulated into some bit of nonsense or other .