I am trying to determine your beliefs and why you keep saying people have received the MotB if vaxxed. It does not appear to have any basis whatsoever in Scripture. Just something you like to say for the trollishness of it... much like other things you repeatedly say.
Let's see, huh?
1) A definite mark in the arm (yes, the vax is not necessarily in the right hand or the forehead, but certainly, those who take the mark are very supportive of the vax in their minds and actions, so the metaphorical right hand/forehead is there, and the literal mark in another location).
2) All, both great and small, are being caused to receive it (true with the vax).
3) Without it, people are losing their rights to buy and sell (those who reject the vax are losing these rights amongst many others).
4) Those who receive the mark will receive painful sores in their bodies (many of those who take the vax are getting terrible sores).
5) Administered by the Beast (the vax is clearly being pushed by the Beast world government system, as the same rules are applying throughout the world - this is not just in one country or several countries - it is across the entire Earth).
The only thing that doesn't make sense with the vax being the mark is how/why would it make one lose one's salvation. However, if the mark does indeed cause DNA to be changed (as the vax manufacturers have claimed), it may be that the mark stops people being fully man, and therefore puts them in the same sort of category as the nephilim, who were neither fully angel nor fully man (and many believe became demons).
There is also discussion about the graphene-oxide in the vax being used for mind control purposes with 5G, which again, if true, might allow people to be mind controlled to reject Christ.
The above facts make the vax-mark close enough to the mark of the Beast we were warned of to avoid it. That we can't understand the mechanism of how it might cause one to lose salvation, or even if it is the actual mark, is a secondary issue. That something so closely fulfills almost all of what we were warned of nearly 2000 years ago, in my mind provides no excuse for us to accept it in good conscience.