You're not entitled to your opinion!

Unless of course you have a preference for something like a style, colour or item- any other opinion has either evidence backing it up or it doesn't. If it doesn't have evidence then the only logical view to take is one of "I dont know". Why does everyone have to have an opinion on almost everything? I have studied deeply many many things and the only thing that proves certain is how little access to empirical evidence we have as ordinary citizens. Even in science there are lots of cases like this, where the majority dismiss something because of preconceptions that turn out to be wrong. The bacterial cause of stomach ulcers being a case in point. So lets all get on better and stop pretending we know more than we do....