I don’t like jitter clicking. If I want to play casually, I get recked by people who can jitter click. I can’t, and that gives me an unfair advantage. I play stuff like bedwars, and basically everyone jitter clicks. I wish it didn’t exist, and yes, I know lots of people will disagree. I don’t want the new combat mechanics (1.9 and after) added to some big multiplayer servers (even though that’s the server creator’s choice). I just want jitter clicking removed so everyone can have an an advantage.
I'm confused as to what you want. You don't like jitter clicking (we're in agreement there), but you also don't want the 1.9 mechanics, which add a cooldown to stop jitter clicking. Or do you mean you would be okay with the cooldown, but don't like all the 1.9 mechanics as a whole? That would be understandable, they have been surprisingly polarizing.
The good news is Mojang is working on further combat improvements, to try and make everyone happy. The link with more information on that is below: