Is Noam's Logic legit?
No, it's not. Opinion and logic do not go hand in hand. Heliocentrism, relativity, evolution were refused and ridiculed at first then accepted. The human mind has trouble adapting itself to changes particularly after centuries of indoctrination or general misconception. See troubles with revolutions of the mind.
Does a minority imply 'wrong' when it comes to the scientific
community? Have there been any other cases of scientific discrepancies based on empirical evidence being dismissed by democratic resolutions?
The scientific community is not based on democracy but in the scientific method. ref here. Keep in mind that we are going through the "fake news" era in which science and philosophy are deeply corrupted. This is also a revolution of the mind philosophers themselves have trouble accepting even in these western "anglo-philosophy" forums. See corruption in modern science here
Does democracy and truth go hand in hand or people are easily
manipulated by feeling instead of reason?
The history of demagogy is not recent ref here. Now as the internet is used world wide techniques of information vs disinformation are blatantly used to manipulate people's perception and ultimately their reality. Some would argue that what we have now in the western world are not democracies but plutocracies in which credibility and information control are valuable commodities.
Not everybody is prepared to look for the truth because it takes time to develop critical thinking skills. Detaching yourself emotionally to have a clear judgement from certain ideas eg. (history, nationalism, religion) is not easily accomplished. Also the mind as studied in modern psychology has whole list of cognitive biases and it's necessary to train yourself to be aware of them. List here
“Never argue with stupid people, they will drag you down to their
level and then beat you with experience.” Mark Twain