They will be single for their entire lives. As will the boys who insist on a girl who looks like a supermodel. As a result, the Orthodox Jewish population will decline dramatically, as most young people won’t get married at all, and those who do will get divorced because supermodel looks don’t survive several pregnancies.
Since that’s not happening, B”H, and, in fact, the vast majority are getting married, I suppose that means that most boys are not makpid on looks to the extent suggested in this thread.