The hevrah kadisha will get their business from you one way or the other. The choice is soon, or when you’re 120. I’m not sure that’s a valid argument, since you will increase the future parnassah of the CK even if you get vaccinated.
As always, I love your sense of humor.
Our Creator has given us means by which human suffering can be decreased, that is an act of love. Refusing that gift of diminished suffering may be an insult to the Giver.