'but when all the evidence tells us that vaccination works'
But it doesn't. Though I suppose it depends on your definition of 'works'.
It appears to work at a whole population level, but it isn't guaranteed at an invididual level. Neither is contracting the disease, and neither is developing complications from the disease.
I am suspicious of anyone claiming that vaccinations are without risk. All medicines carry risk, both known and unknown. That the risk of not taking a medicine is more than taking it, is down to the individual to assess and many individuals would like more information before making their decision. Unfortanately requesting such information often gets a response of at best pity, but at worst ignorant ramblings about irresponsibility.
And for the billionth time, Wakefield did not say that the MMR causes autism. However, my db's consultant did say that the DTP was the probably cause of his kidney failure.