If I met a person who was my heighth or shorter IRL and we hit it off, that's another story. I simply know what I like and I like tall and I will not be happy with short. I am 5'10" and if I am reading a profile that says the person is 5'10" or under, I am going to pass him by.
You shouldn't be down on a man who is not attracted to BBW. Everyone has their own personal preferences and they don't need apologize for them.
If the attraction isn't there, it is not there.