They are even assuming its gravity.
I prefer large/small galactic force.
That would make three sets of push/pull forces.
The galaxy spins as if all the stars were glued to a plate.
The outer stars move much faster than the inner stars.
Gravity just doesn't explain that at all.
Electric Universe!
I would agree, however, we don't know much about electricity or energy.
large/small galactic force
large/small electric force
large/small nuclear force
I do not believe its electric and magnetic forces.
electric, magnetic, gravetic are all the same force in different directions.
Speaking of “galactic force” PBS one something similar just this week. The presenter doesn't quite like the idea but you might: