Everyone wants to be loved and wanted. It doesn't really matter what people look like or how bad their hygiene is. They are still capable of loving someone, and being loved by someone, even if you're too shallow to see the value of a person. This extends through and beyond sex.
Everyone's got their problems and who knows all the crap other people have been through that have led them to where they are? Looking like they do? No body. But that doesn't remove their value and worth as a human being who has fears, doubts, hopes, etc.
Trying loving someone first, and then you'll see why people who, even though you are turned off, are still capable of communicating and receive love in it's many forms.