Name calling and generally going "My Opinion is right, yours is wrong" is not how to debate.
1.) It's not a debate. In order for it to be a debate the answer to the question must be debatable. It is not. Blood magic can be used on unwilling victims. Fact. I'm sorry this upsets you but thems the breaks.
2.) Stop being melodramatic. No one has called you any names. Stomping your feet in a huff is not a good way to make your point.
3.) You can have an opinion and it still be blatantly wrong. For example, "My opinion is that the planet Earth is square and not spherical" is a perfect specimen of an invalid opinion.
4.) We're not derailing the topic. The topic is about Fiona. Fiona was affected by Blood Magic. You insist that Blood Magic cannot be used on unwilling victims. This is factually incorrect. Ergo, this sidebar is on topic.
In summary, by all means, cling to your opinions. That's your prerogative. Just like it's mine to say, "You're wrong." Which I will continue to exercise thank you very much.