Sometimes, it not that others missed your point. Often, it's that they don't agree. And that's OK.
Just because you feel strongly one way about something doesn't mean that's the truth; it's just how you feel about it. And that needs to be enough for folks.
You can talk until you are blue in the face, but you can't necessarily change anyone else's opinion.
1. A belief or conclusion held with confidence but not substantiated by positive knowledge or proof.
2. A judgment based on special knowledge and given by an expert: a medical opinion.
3. A judgment or estimation of the merit of a person or thing: has a low opinion of braggarts.
You can, however, be quarrelsome and annoying to the point that your guildies don't especially like you.