Now we're getting somewhere. Indeed A:R was a bad idea for the reasons mentioned above, and that will never change. But what will happen is that some day the prequels will be finished. We may get a movie about Isolation, but that will one day be finished too, as that story just leads back to Ripley. Then we will be faced with moving the films forward, and that will be a post A:R reality, which for the reasons you mentioned about, no one gives a f$&k about. So there's a chance that A:R may get retconned for something that makes more sense than literally resurrecting dead characters, just like the AVP films got retconned. If that happens, well then you might as well retcon Alien 3, since you'd already be taking films out of continuity.
Guys, I want the same thing you do, a vibrant, popular, thriving series with regular instalments. Does anyone here really believe that the series will be a success once the post A:R continuity films start to come in? Seriously?