—They are making fun of anti-vaccine people, who should be made fun of for obvious reasons.—
Why because they don’t agree with you, the worldwide owner of logic and sound thinking?
If you think that the topic is so simple as ‘vaccines are safe’ then you are not thinking.
In 2011, the National Institute of Medicine did a major analysis of vaccine risks and concluded the following:
They also concluded that autism was not associated with vaccines but that in most cases the casual relationships was difficult to tell.
Thus, it’s not a simple subject, except perhaps to simple minds.
And in case you are not familiar with the National Institute of Medicine (and there’s a good chance that you are not) here’s some info on them:
The Institute of Medicine (IOM) is an American non-profit, non-governmental organization founded in 1970, under the congressional charter of the National Academy of Sciences. The IOM is part of the United States National Academies, which also includes:
National Academy of Sciences (NAS)
National Academy of Engineering (NAE)
National Research Council (NRC)
In other words, it is as prestigious an organization as you can get.