Xenophobia is the name for it and it's not treated by psychiatrist or therapy since it's not a mental condition but something cultural. Don't mix things more than you are already doing.
People want to have information and you are creating nonsense and disinformation.
Esaiophobia is the fear of Mexican people.
dressaphobia
I am not sure of the name but yes, people can have a phobia of anything, for example, my friend is scared of tomato ketchup.
atychiphobia some people have this phobia
up phobia
Yes. Genuphobia is the name of the phobia
Social phobia
Socianthphobia
Yes, there is an unusual but officially recognised phobia of right-handed people.This phobia (and the phobia of anything related to right-handedness) is called Dextrophobia.
Yes. Since this is a specific fear, it would be termed a simple phobia (rather than a social phobia).
Though some people have a phobia of Jewellery, there is no specific name for a phobia of bracelets
People with social phobia may not be shy, they may feel perfectly comfortable with people except in specific situations