no-one is denying that there are some rare complications associated with vaccines. however, those complications do not include autism and are usually mild. encouraging others to forgo vaccination is not a good idea, purely on the basis that by doing so they are encouraging others to expose their children to the much greater risk of these childhood diseases.
equally, there are many (many, many more) whose children have been damaged by the diseases we vaccinate against. the anti vax crowd don't extend the same courtesy you are asking to those parents, even though they directly contribute to the transmission of disease to vulnerable children who cannot be vaccinated.
the myth that mmr causes autism, that measles is a mild disease, that there is some kind of financial motivation to vaccination, that there are chemicals in vaccines at harmful levels is all nonsensical propaganda peddled by an anti vaccination movement and do not stand up to scrutiny. and these myths mean that children that would otherwise be healthy get sick and sometimes die.
so yes, I get hot under the collar about this in the hope that it will encourage some people to think twice about needlessly exposing their children to lethal diseases. Vaccine damage is a terrible thing but it is very rare. disease is only rare because of immunisation.