Interesting....

Did you show him the reports of deaths / disablement from the vaccine? Did you mention that his own medical community has enabled the deaths of thousands of people who could have been spared with treatment from therapeutics from HCQ and Ivermectin? That "respected" medical journals such as The Lancet had to retract their anti-HCQ conclusions due to it being complete malarkey? That the Vaccine, in the words of the CDC (I think it was), does not actually prevent you from getting the virus and its long-term effects are not proven or known? Ask him why his own medical community was willing to sacrifice thousands of people around the world for political motivation.

Show him the video of a young Bill Gates talking to CIA representatives about vaccinating the "religious tendencies" out of people and ask him if this is the sort of "medical care" that his community stands behind. Ask him why these vaccine companies are immune to litigation and cannot be held liable in case of adverse reactions (which is pretty much a guarantee there will be). Ask him why doctors have failed to apply critical research of their own and understand that withholding HCQ / Ivermectin / other treatments is tantamount to aiding and abetting in manslaughter.

I guarantee he will deflect and ignore your inquiries, but I find the question approach is the best way to at least engage with these people. You'll find out really quickly who is willing to be honest with themselves and consider these points, and who is scared of dissenting discussion and would rather embrace the cognitive dissonance.