Small population: "You're all idiots."
Larger population: "Fine. We're not listening to you."
Don't forget:
Small part of the Larger Population: "hey! there's another way to think!"
Also:
Large Population: "love the new clothes emperor!"
Small Child: "he's naked!"
In my neck of the woods, people will use arguments like, "everyone knows that the bible is a work of astounding wisdom", or "everyone knows that there is a god of some sort". I think that fewer people would make these assumptions about what "everyone" believes, if more people were vocal and blunt in the face of absurdity.
To me, its a conversational sort of vote. If you suppress your own dissenting opinion, you're not voting. And if you're not voting, you're basically casting a vote for the majority candidate, be it ID, psychic powers, or what have you.
So say you are in a room with oh, 9 other people. One person stands up and says "I believe humans were designed by a higher intelligence". No one says anything, including you. In the minds of the 8 other people, you've basically just cast a vote for ID.
Scenario two:
Same room. One person stands up and says "noah literally put 2 of every animal onto the ark". You fall down laughing and say, "what, diplodocus too?" Some people are going to be offended. But hopefully at least one person is going to laugh along with you.