Of course not. Very little of existance exists at the 100 percent certainty.
Precisely. You can't be sure nor can you prove that anti-vaccination parents are the cause of your case of Pertussis. It's just as possible that someone sneaked across the border and infected you.
Pertussis is an especially difficult case because the immunization threshold for herd immunity is so high. It's entirely possible that you were infected by someone who wasn't anti-vaccination but simply had some other health problem that prevented vaccination.
Now people know they must get vaccines like that renewed. Before that, the lack of people with the disease meant we didn't.
So, you somehow absolve yourself for your ignorance while condemning them for theirs.
We're talking about disease, not toxins.
Let me refresh your memory. Thankfully Slashdot doesn't let people edit or delete their posts.
they have no right to kill me - none.
You don't get to set the terms of the discussion. You also don't get to determine what other people can and can not do to themselves. Everyone who takes part in the amenities of modern life is helping to kill everyone else. The consequences of our actions apply to everyone that we have even the most incidental connection to. If you don't like that, you can always be a hermit.
I happen to believe that the smart and responsible thing to do is to vaccinate yourself and your children but it's not my place to demand that anyone else does it.
I was vaccinated and I have vaccinated my children.