(Scratching Head) I think because if you don't inject them -- you are supposed to get two different brands of the vaccine for them to work -- then rage filled leftists will put you on their LIST. Eventually there will be consequences . . . that is, if they can get that turned into a law that the partly compromised Supreme Court won't shoot down after the fact.
Meh . . . so leftist rage at people capable of weighing the odds and deciding NOT to be their experimental vaccine test subjects is essentially meaningless at this point in time . . . but in the future . . . it could be different. It all depends on THEIR future political fortunes.