Well, Magnus, I think this last post pushes over the top a bit. I'll give most high school advisors the benefit of the doubt when it comes to their good intentions and sincere interest in student learning. And I agree more with your previous post that the real purpose of the IB extended essay is to induce students to learn how to research a topic and present findings and/or conclusions in an understandable way. These kinds of skills (along with basic knowledge) learned in high school will certainly benefit students in later life!
That said, I also agree with your advice concerning essay topics. OP, please pick a topic that you are not familiar with and have no opinions about.
For a number of years, I served as a community judge for senior projects at a local high school. Being an IB high school, I listened to many presentations of IB extended essays (as well as non-IB papers). IMHO the worst presentations were ones where the presenter chose a topic about which he/she already had an opinion, which led to biased superficial research for only that information which supported their opinion, and read more like a propaganda piece rather than a balanced research paper.
Avoid that trap! It's much, much better to actually come to your interpretation (or opinion) through what you learn from your research! When you finish your essay, you should also be able to speak to alternate interpretations (or opposing opinions) along with the facts that lend credence to them.
My two cents...