My part time NON federal work study on campus job paychecks has FICA taxes witheld. Is this normal?

Yes

Everyone pays FICA taxes on all wages up to the limit

Sure is.

Yes it is... welcome to work and taxes

No, not everyone pays fica/mc taxes. My on campus job did not withhold for these and I assure you this was legal. My family was "too rich" for me to have an actual "work study job." It all depends on interpretation as to whether you are a student first or an employee first.

https://www.irs.gov/charities-non-profits/student-...

You will have to do your own research. You do not give facts here.

For example:

The proposed regulations provide that the following employees are [NOT ELIGIBLE] considered career employees: (1) employees who regularly perform services 40 hours or more per week; (2) professional employees; (3) employees who receive certain employment benefits; and (4) employees required to be licensed to work in the field in which the employees are performing services.

yes.

All jobs withhold FICA/Medicare - you donot get this back when/if you file. You should also have federal and state income taxes withheld unless you declared yourself exempt.

Yes

yes

What does a federal job have to do with anything

Everyone psys social security tax