Ethically yes, obviously it's many orders of magnitude worse to deny your septic child antibiotics than it is to not vaccinate them but in my view it's on the same spectrum. The data we have is all epidemiological, which is inherently somewhat fuzzy, however a plethora of well-designed studies have crunched the numbers different ways and absolutely no link can be found between rates of childhood vaccination and autism. Vaccination was considered one of the massive health breakthroughs of the 20th century. We have pretty much eradicated Hepatitis B for instance while it's still rampant in many Asian countries. From a Medical standpoint there is no valid reason not to vaccinate. I'm not advocating forcible vaccination and understand why that could make this hysteria worse however as a society we should examine where this misinformation is arising and how it's being amplified.