If you look at this from another angle, it's not so bad. Would anyone be angry if there were three pacifists on the Defence committee? A certain portion of the American population opposes science, and as harmful as that is to the country, a democratic system means they get their say.
EDIT: For the record, I wish these people had never been elected, and think the American government should increase science funding significantly. It's not my call, though.
Well, "representation" is not quite what it sounds like. A representative is, by his office, held to a higher (and different) standard than non-elected non-officials. That's why you can say "I wish these people had never been elected".
Effectively, what you're describing here is analogous to a tolerance of intolerance, whereas actual tolerance requires an intolerance of intolerance. The relevant quotation, rather than being "I disagree with what you say, but I would die to defend your right to say it", is instead, "All opinions are not equal. Some are a very great deal more robust, sophisticated and well supported in logic and argument than others."
EDIT: For the record, I wish these people had never been elected, and think the American government should increase science funding significantly. It's not my call, though.