Fortunately for those who are generally considered unattractive you are correct for most people most of the time but 'the race is not always won by the swift'. As I try to impress on particularly lonely young people - the best way to win over a stranger is to make them feel your fire, and that fire - that one of the things you are deeply passionate about - might be music it might be dancing it might be poetry it might be mountain climbing it mostly doesn't matter. Because in romance and sex enthusiasm trumps appearances and with time a person you like more and more starts to appear more and more attractive. If you are introverted it will take more time and more luck but it you can eventually share your excitement with someone there is a good chance they will find you exciting. And if you have imagination and persistence it can last a lifetime.