
Hank designed a serum to both help Xavier walk and to stop his powers from working. Then Hank explains to Logan what happened to the leader of the X-Men, how losing his sister, best friend, students and teachers left him almost completely alone, with only Hank and his powers (which spiraled out of control the worse his emotional state got). He's all goofed-out and clearly doing some form of drugs plus, he's walking again! As the conversation goes on, it quickly becomes a lot less laughable.
When we first see Young!Xavier, it's quite funny, as he looks like your average hippy. Instead, he begins to slowly bleed out inside the stronghold, the only good thing being that he gets to have a final moment of peace and reconciliation with Charles before the Sentinels get inside. He doesn't even flee after that, using scraps of metal to reinforce the entrance behind him, fully willing to die out there, and he probably would have, had he not been pulled to "safety" by Kitty and Blink. and pulling a shard of shrapnel from his chest, the tip visibly soaked in blood. Magneto almost managing to stop the Sentinels, then looking slowly downward after the explosions cease. The music and the reactions from Professor X and the rest of the X-Men sell it as a tremendous tragedy, and it makes her death feel like it has a lot of weight to it. This is the future he's ushering in for his people. The worst part is this happens over Magneto's New Era Speech. Meanwhile she has to keep fighting through the pain and stay focused on Logan and keeping him in the past, or she may cause an even worse future for her kind, all the while knowing that all of her remaining friends, including aforementioned Implied Love Interest Bobby, are fighting a hopeless battle that will unquestionably end in their horrible deaths, including the Professor. Picture this: she is constantly in excruciating pain, to the point that she is in tears, from when Logan accidentally cut her and is slowly bleeding out. During the final battle, Kitty's look of absolute, tear-stained despair after seeing Bobby, whom she's hinted to be in a romantic relationship with, die horribly while making the last stand to protect her and the others left inside. So they fight with every last bit they had and end up dying horrific deaths. Should Logan fail, no one will be able to come back, which means this will be their true death with no reset. Should Wolverine succeed, they will cease to exist with their timeline. The second time feels like a last stand because they know that, one way or another, their existence will be wiped out.
It's even more brutal the second time because the first time, they die relatively quick.You have to watch this twice once in the opening and again during the climax.Seeing the Future Sentinels slaughter the X-Men one by one.Also, even though the bad timeline of the future gets erased because Logan's mission ends up being successful, those mutants are still dead in the bad timeline, because Logan arrived in the past only after they were killed already.Even if he was only an fb that she happened to be impregnated by, it's still got to be painful to see him like that. Pay close attention and you'll notice that Azazel's autopsy photos are what are shown right before she really starts to lose her composure.If Movie!Nightcrawler is still Mystique's son with Azazel, then it means she just saw the body of her lover and father of her child being used in scientific research.Seeing her co-workers is bad enough, but then she starts seeing her friends. She lets out a tiny, pained gasp when turning one page over turns out that's the page showing Angel's body.
It only adds fuel to her hatred for Trask. Mystique finding the autopsy reports at Trask Industries, and seeing the pictures of Angel and Azazel's bodies, among others.Now remember what he did to her in The Last Stand. As Xavier explains to the future mutants about Mystique, he regretfully mentions that he'd tried to help her but only succeeded in "pushing her away." If you look closely at Magneto, despite remaining perfectly still, there seems to be a definite look of sadness, if not shame, on his face.