No, because vaccines have no relation to autism.
IF there would be a:
- vaccines contain X amount of lead
- X amount of lead causes autism
AND there would be a correlation between vaccines and autism, I would happily say 'vaccines cause autism', instead of saying 'it is just lead which causes autism, fact that vaccines contain lead is irrelevant, because injecting pure lead would also cause autism'
People from certain racial minorities have lower IQ. It is caused by social inequality, not genetics ('lead', not 'weak patogens' in false vaccine example), but let's not get PR into our statements.
Of course, EVEN if there would be genetic relation by few percent, it would not give anybody right to dismiss specific person just based on that. We are talking about averages and very small differences. But if we are allowing people to discriminate by saying 'your are from poor family, so you are probably stupid', we should allow as well discriminating by 'your skin is blue, blues are generally poor, so you are probably stupid'. If we are not allowing to discriminate based on 'probably stupid' because every human is different etc, then it doesn't matter if it is race related or socioeconomic related guess.