Agree with Laughingman, that it is very very rude to scream and yell at everybody
Doing so, you will typically obtain at least 4 things:
1. You sound extremely rude and unpolite - angry at everybody when yelling.
2. You sound like your words are the only truth.
3. You sound like you are putting everybody else down, if they have a different opinion.
4. You sound like it is pure PR.
So I will also give you this, just as a good advice - because if you feel a lot for a topic, you can not see how you "act" and represent yourself clearly :
In order to have anyone believe or listen to you, please use a decent language and way of communicating