I do not think there is one. From time to time, you get skydivers who quit the sport due to the fear element, but that is usually when they are learning how to skydive and only have a few jumps.
In terms of a full blown phobia, where someone cannot be near another skydiver or watch it on TV, that I have never heard of.
We call it "skydiving". Actually the term skydiving was coined in the 1950s and came into popular use in the 1970s and 1980s. Up until that time what we do was most commonly referred to as "sport parachuting."
There is probably no specific term for that. But there is a specific term for the one who asked this question. Genius!!!!
A wuffo is another term for a whuffo - a person who is not skilled in skydiving.
There does not appear to be a phobia term for the fear of being confused. However, phobophobia is the fear of being afraid.
"fist-a-phobia" comes from the film 'Midnight Run'. It was a term that Robert DeNiro's character used in the film.
There is no medical term or phobia name for the fear of immigrants.However a similar phobia called Xenophobia is the fear of foreigners.
Jewphobia
ophidiophobia.
Trypanophobia
The phobia of four legged animals can be referred to as zoophobia. This is the general term used for various phobia related to animals.
Tandem skydiving people is the term giving when two people skydive strapped together. When people skydive for their first time they must tandem skydive with a professional.
The medical term/phobia name for the fear of marriage is Gamophobia.