greekone, first you have to take most of what is said on GC with a grain of salt. Many think this is a good place to position themselves as faultless/perfection. When we all know that's not true.
Second, it is VERY hard for a fraternity to change their image. Mainly, you will need a lot more members then just you to agree that a change is needed. Which, may be impossible (especially if a majority of the house is already made up of the type that you are trying to change from
The guys you usually hang out with in the house, what do they think of the house makeup? Perhaps this group should go out for some beers and discuss this. See if you all even have common ideas. They may be fine with it as is, and like the diversity.
What is sounds like to me is you should have probably joined one of the traditional national GLO's
