I think what bothers me the most about how quickly some of the characters are willing to sacrifice Stiles for an easy way out, is how incredibly hard Stiles fought to stop this from happening.
He was losing his mind and he was still the one figuring everything out.
He figured out he was possessed, he came to that difficult conclusion and put those pieces together. He asked himself the hard questions and even though it was painful he figured it out. He told them about it and no one took him seriously enough, or at least not until it was too late.
He went to the hospital for help. He talked to everyone about what was going on.
This isn’t something he hid from. He confronted it, he researched it, he did EVERYTHING he possibly could to prevent it.
And even when it did happen, the second he was able to get control of himself again, he was researching and looking for answers. He was breaking in to basements and figuring things out (things that Kira’s mother already knew but didn’t share with everyone). This entire time he has done more to figure this problem out than anyone else. And he’s done it all while terrified, violated, and weak.
So yes, I have a big problem with people blaming him for this, giving up on him, and being perfectly willing to kill him.