No, I don't think the world wants, or is waiting for a "Rambo" reboot! "Rambo" is so much of its time and I think any remake risks feeling like a camp, knowing, parody of the original. As if Stallone hadn't done enough of that himself with his successive sequels! The world needs fresh ideas, not rehashes of genres that had already been flogged to death. This is why we must have no more "Alien" movies, and ideally, no more Marvel movies. "Rambo" for a new generation? No, I think "Rambo" is very un-21st Century, and would feel like a joke to today's younger audience, not born when the originals came out. Not everything demands re-making - and certainly not "Rambo!"
No, they're not depicted as reality! We are aware, as viewers, that what we are watching is an entertainment, a TV or movie confection, not a documentary. The relationship between us the viewer, and the artists who make these confections, is understood, and accepted. And, are we not entertained? A lot of us like the MPDG, like others like watching Marvel superheroes, conscience-stricken soldiers, over-stressed doctors, or scheming politicians, whatever... It's drama, comedy, romance, you-name-it... All of these characters are, in their way, cliches. The challenge for all of us, as writers, producers, or directors, is to make them strong enough, and vivid enough, to command our attention for the hour or two that we spend in their company for the duration of the entertainment. That's the test. Not whether a so-called cliche character is wrong in itself. If the MPDG is a watchable character who justifies her place in that entertainment, then that's fine by me. She's fulfilled her role, played her part, and earned her place in it..!
Mmmmm... Some good scriptwriting advice here, but, it's a little po-faced. The plain fact is, that for many men, the Manic Pixie Dream Girl, is (while admittedly superficial), an attractive ideal. Yes, we know that in grounded real life, there aren't too many women like that around, but in the world of romantic sitcom ("romcom"), which is after all, a very popular and appealing entertaining souffle to divert us in this grim and challenging world, we're aware of that, and it can provide us with a loveable character for us to spend an hour or two with, before we return to the real-life challenges around us. We know she's pretend - like the possibly, equally manic, or man-with-a-problem, that she's going to interact with, and provide the plotted fun for the duration of the film. Romcom is idealised entertainment! It's escapism! We know it's not quite real life, which is, among many reasons, why we enjoy it, and its characters. Surely, as ever, the ultimate arbiter is whether that characterisation works within the context of the piece. Clearly your examples, (among many others), do. Your point (isn't it?), is that the MPDG has become a film cliche, and that's why we should write more rounded women. Yes! But don't knock the MPDG. Many of us still find her very appealing..!