As per Witch Hunter Robin, “witchcraft” refers not to magic done by just anyone, but to the abilities of humans born with those powers. (I shudder to think how the American religious right fed on the mainstream revelation that witches exist.)
The performers at the Rally were all let in on Stephen’s true nature ahead of time, although Bennett still gave the vampire a wide berth as he came out on stage to sing “America the Beautiful.”
As for Stephen…it’ll be some time before the dust settles, to reveal whether his new public image is an evil monstrous scapegoat or a Seras-Victoria-esque sexy immortal protector. One thing is for sure: no matter where he ends up, Jon will stay by his side.
Jon: Stephen Colbert poses no danger to any of you. He’s held in check, not by a stronger monster or witchcraft, but by the efforts of a couple of ordinary humans. With, let me assure you, the knowledge and approval of the Hellsing Organization.
If you want to know why I’m here, and what I want from you, I can only assure you of this: You have already given it to me. Your bravery and determination in being here, the goodwill you’ve been showing each other all day — your humanity was what I wanted.
Because the only way to defeat a monster is by staying human. Thank you.
Ladies and gentlemen, please welcome Tony Bennett.
Stephen: BENNETT!
Jon: Down, Stephen.