I HATE PHONE APPS THAT STILL NEED TO USE MY RAM EVEN THOUGH I NEVER USE THEM OR ACTUALLY NEED THEM!!!

Force close them. And block their receivers so they don't auto start [Root].

Or... Y'know, just uninstall these XD ?

I suspect you are talking about those apps which are leaking memory, not the ones which are kept cached by the operating system.

Leaking ones will keep eating memory while cached ones will safely be stopped by the OS.

But it could also be the webview some launchers use for the search activity. It is based in Chrome and... You know. It is even worse than a leaking one :P

Root and hibernate (Greenify). Or root and remove 'em.

Unless an app is leaking memory, which will be apparent by the constant growth of the memory usage, you should not kill apps to get memory and they are actually not necessarily the ones that use your RAM when you're not using them. If you are on Android, it relies on keeping things in memory after you close them so it can bring them back faster when you open them back up and when it fills up the RAM to a certain point it starts killing off older apps so it can cache new ones. Closing the apps is an indicator to Android you're not using the app anymore and it's safe to kill it, but unless it doesn't have enough RAM to work, there's no reason to kill it and it's gonna start up more quickly if it's still in RAM.