Supermodel Oluchi Onweagba and former Miss World Agbani Darego certainly belie the foolish notion that "brown (light, medium, dark) skin people" are not beautiful or attractive!
Actress Aishwarya Rai Bachchan of India (Bride and Prejudice, 2004) also certainly belies that notion. Actors Naveen Andrews, Arjun Rampal and Hrithik Roshan should put the whole idea that "brown (light, medium, dark) skin people" are not beautiful to rest as being the foolish utterings of unthinking people.
In other words, yes, "brown (light, medium, dark) skin people" are beautiful and attractive!
Just keep in mind that not everybody likes blond hair, not everybody likes green eyes, not everybody like curly hair, not everybody like black hair, and ... not everybody like darker skin tones. That's ok. Not everybody has to like any of these, or other, attributes.
Everybody does, however, have to remember that their preferences do not universal laws make! And everybody does have to remember to hold courteous, respectful thoughts so as to speak courteous, generous, respectful words.