This is not loigcal. It presumes that all galaxies are horizontal in
the same direction.
Planet Earth orbits almost 90 degrees to the galaxy. The galactic
center is on the ecliptic, but the galaxy is not.
The same goes ith a totality of all galaxies. They do not spin all in
a horizontal plane as if the Big Bang was a disk that exploded in
solar system fashion.
What does water do on the equator? Not spin at all.
Don't think so. The spin itself is the allowance of upward air flow.
The air causes the spin by forcing a vortex to be made in pressure to
escape.
So far science doesnt claim the universe has one vortex, but rather
they describe black holes as these vortex of backflow energy.
Maybe they need to define the difference between a wormhole and a
black hole.