I have felt like that at times, definitely, though not so much because of my autism specifically, but rather because I was in a circle of geeky friends (being a geek myself) in secondary school, we were the social outcasts... so that's what I could easily recognise in the story of the X-Men.
I'm very fond of X-Men, I can see the parallels between the persecution of mutants and the prejudice against and rejection of anyone who has a disorder/disability, not autism specifically... But next to the obvious parallels with racism, I see that one too.
And yes, Wolverine's claws are part of his body. Originally, they were supposed to be bionic, but as Bradleigh said, it was later revealed that he always had the bone claws, then the adamantium was applied to them. So he extends the claws with muscles.
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clarity of thought before rashness of action