So I shouldn't trust the textbooks and natural science journals I read? They tend to be written by folks who back up their research with something better than "I've got bears in my yard." You've offered zero insight into zoology or animal science and you've made some pretty lofty claims without backing them up whatsoever.
You claimed that predation is a matter of bigger animals killing and eating anything smaller, and that bears > people. You also claimed that Brown Bear boars eat bear cubs, and I quote, "like candy", without backing it up. In retort of the former point, I provided data regarding human-bear interaction which clearly states bears rarely attack humans. In response, you had nothing to tell me besides that I have no idea what I'm talking about. So you tell me...who's coming off as more credible here?