Sometimes it might just be that people formed opinions for matters which are more complex and need more knowledge and thinking of coming to a proper conclusion.
If 62% of Americans think homosexuality is wrong, does that really matter? Do we really wanna ask them that and act on it?
We are asking to many people what they think independetly of how much time and effort they spend with a topic or if that topic is not superseeded by something else (like an Amendment).
No one is going around and asking people what operating system is better.
My personal assumption, and this is now very critical for my inner conflict: I do believe every opinion should matter and i do strongly believe in democracy but this only works when the other requirement is true: People are reading up and educating themselfs on politics.
Enough people don't.
Enough people in politics don't.
They are there because they want something not because they care.