I find my parents incredibly attractive, beautiful people. There is nothing sick in that.

(Although by the tone of your post, you are referring to a more sexual orientation.)

One mans sickness may indeed be another mans cure.
As for finding my parents friends attractive. Sure. Nothing wrong in that either.
And there is nothing wrong IMO in finding my parents friends sexually attractive.
Some of my parents friends are younger than them, some the same age, some older.

They are not relatives, they are people. Just like your best friend. Or the person walking down the street in front of you.

Maybe people in the media who are voted 'the worlds sexiest people'... Like Sean Connery, or Madonna, or Tom Cruise, Harrison Ford, Eric Clapton etc... (ok... trying to think of universal names here...)... maybe people finding them attractive are just 'sick' also?

There is nothing sick wrong with wanting to be in a relationship or scene with people around your own age. But theres nothing sick or wrong with being attracted to an older person, be they family friend or munch attendee.
To each their own.

I am constantly amazed at the lack of respect shown for peoples personal choices.

Peace and Love