I can't recall any person or media outlet claiming that Antivaxxers would drop dead in the streets. Perhaps you can enlighten us with some proof behind your statements. I can't find anything on the internet that made claims about anything like that.
The claims and predictions that I am aware of at the time, and have since proven to be true, are that non-vaccinated people would have a higher incidence of getting covid, serious illness and death. That has turned out to be true, and it continues to be the case. About 8 times as likely in the cases of death and hospitalisation.
And what is also true if no one got vaccinated, the problem and mutant strains, including more serious ones, would be a lot more prevalent and we would have a much larger problem on our hands. The main reason anti-vaxxers are not dying as much as they otherwise would have is they can thank the 90% plus of the population that save them with herd immunity by getting vaccinated.
Don't bite, the muffin is just trolling. He has never produced any evidence for any of his statements except for conspiracy theories. Don't waste your time.