Not to mention two giant problems with the entire scientific community:
1. It just sucks at communication. Many people have been misled because marketeers lied to them "it's scientifically proven!" while scientists did nothing to fix that, because they only cared about preserving communication channels between themselves. The mistrust in science is obvious if you take this into account.
2. At the end of the day, scientists are people who have their biases and weaknesses. There have been well-documented cases of the entire scientific community doing a massive fuckup. So when now a bunch of scientists come and say "trust us bro, this time it's legit" it's reasonable to be sceptical.