"I think science has earned its lack of credibility with the public. If you kick me in the balls for 20-years, how do you expect me to close my eyes and trust you?" I'm really happy to see that someone else sees this. I've been harping on this for a long time -- that the reason people believe things like anti-vaxx propaganda is not because they are idiots but because scientific authorities, the media, and the medical…
The blame is misplaced here, though. There's no real avenue for science to interact with the public currently (except for /r/AskScience, which is a terrific development). A vast majority of the misleading described is perpetuated by news headlines ending in question marks and "doctors" with mail order degrees trying to sell books. If there's any blame to be placed on scientific institutions it's not that they are bad…
There are a few things we are pretty much past the flip stage on, vaccines are one, smoking is another, but get much beyond that and its up in the air. Welcome to Woody Allen's Sleeper; hell he got it right on the phone company.
Then throw in, who watches the watchers, as in who polices those who claim to know. When you see government and education malfeasance everyday these institutions become even less likely to earn or hold the trust of the public