Okay, first of all, probably avoid making thread titles like this.
Second of all, sounds like you just had a bad string of luck with picking diplos. I can recommend quite a few Diplo oriented clans where they have numerous good games, simple and inviting, and welcome to newer players.
T4R
http://warlight.net/Clans/?ID=54WWII based clan
Roleplayers Realm
http://warlight.net/Clans/?ID=68Game of Thrones theme
USW
http://warlight.net/Clans/?ID=53Based around obviously, The United States government and Military. Lots of these members play and create nice diplos.
The League of Nations
http://warlight.net/Clans/?ID=65A very nice clan to get into, based around global politics and (from what I know)takes clan politics very seriously. Variety of diplos, Certain members create extravagant diplos, very well thought out and perfected over time.
Roleplays Guild {RP}
http://warlight.net/Clans/?ID=3The first roleplay clan ever, excellent taste in quality. Sadly invite only, but it's something to strive for if you really enjoy diplos and roleplay.
Hogosha
http://warlight.net/Clans/?ID=58Yet another Diplo clan, fun friendly players, sort of active community.
Mongols
http://warlight.net/Clans/?ID=28Also a nice clan like Hogosha. Fun players.
Getting into one of these clans can (almost) assuredly guarantee you join nice diplos, but be careful when joining open seat diplos. I know that real time appeals to you, but those are often rushed and can agitate a person easily. Try out the multiday selection, as there is a variety of choices and are more slow paced, allowing for proper explanation and more in-depth analysis of game rules. It's also a far better crowd than RT diplo players.