dragon40 -- one important difference between vaccines and your cancer drug,
is that you were already ill and would likely have died from cancer if you did not take the drug.
Therefore the risks associated with that drug (as ALL drugs have including vaccines) were outweighed in your case and your determination by the risk of the untreated cancer.

However with vaccines, they are given to healthy children/people in the hopes that they 'might' prevent some virus that the person 'might' get and 'might' cause harm.
These vaccines have many, many adverse reactions listed on them and I have heard so many stories from real-life friends, and online friends, of how those reactions were deadly and terrible.
It is therefore a very, very smart thing for each person or parent to weigh the risks vs benefits of a vaccine and NOT to take every single one of them that is being pushed on us.

In every singled vaccine that I have investigated, one by one, the risk of the vaccine side-effects outweighed the risk of harm from the illness.

The number of vaccines have risen incredibly that they want to inject in children, ever since the law passed that you can't sue a vaccine manufacturer no matter how negligent they were in making that product.