You should probably get a different phone regardless of what they do with the RAM, because it sounds like you just don't like iPhones. I don't get why so many people seem to complain about how a certain product should be changed into what they want instead of just buying a different product that is exactly, or at least closer to, what they want.
I was merely trying to show that the previous poster's assertion that Apple designers have tested the phone and know that 1GB of RAM is sufficient doesn't really mean anything. Nobody tested if the 6+ bent inside peoples' trouser pockets and somebody made the call that a protruding camera is better than a flush camera, more structural strength & a bigger battery etc. The poster was suggesting that the 6+ is a perfect device because Apple have tested it and wouldn't release anything less than a perfect device. It's baloney isn't it? No device is perfect but fatal flaws shouldn't exist and if they do, nobody should defend them.
1GB of RAM is clearly insufficient for the 6+ and in my mind, nobody at Apple can have tested multitasking capabilities whatsoever.