1. The fact that they are enforcing a false dilemma and refusing other options, does not stop it from being a false dilemma. 2. Yes it is. The conclusion that

1. The fact that they are enforcing a false dilemma and refusing other options, does not stop it from being a false dilemma. 2. Yes it is. The conclusion that witchcraft exists is derived from the (actually still unproven) existence of witches. Which is also where the premise of the accusation comes from. Hence the circular reasoning. The more witches they burn, the more the reality of witchcraft becomes (in these minds), the more can be accused of it. 4. Maybe? There is almost certainly insufficient proof of anything the person has done proving "witchcraft", since witchcraft doesn't actually exist. These things were usually started by gossip (perhaps jealous housewives), anyway. 5- Yeah, fine, there was no other person mentioned, so this one is kinda weak, although the mere accusation of it "puts you in that group" so to speak