I'm sorry you feel like this. I can relate a bit. I don't have this kind of violent thoughts, but sometimes I think of how good it would feel to have power over them, and I imagine myself angry/violent towards them. It doesn't happen very often, it's quite rare actually, it mostly happens when I'm angry and frustrated at them. But still, I feel guilty when I think of it.. so please, look for a therapist if you can and share your thoughts - it could help.