Does gravity really dictate how the universe manifests or is it actually electromagnetism?

This may seem like a question of scientific detail, but actually its a fundamentally disputed scientific worldview. I say "worldview" because even when there is agreement on the scientific points which are often already proven, there is a vast gulf in interpretation between the two theories of a more established gravity dominated universe, and a universe dominated by electromagnetism. Walt Thornhill's website www.holoscience.com suggests that the term "Electric Universe" has already registered with a patent office so somebody has big plans. I will give his synopsis although there is some variation in some of the theories I've looked up, I'll give an assortment of links at the end which you can look up yourself.

Here is a good overview synopsis

Introduction.

In the wake of recent discoveries, a new way of seeing the physical universe is emerging. The new vantage point emphasizes the role of electricity in space and shows the negligible contribution of gravity in cosmic events.
Images returned by high-powered telescopes and recent space probes have challenged astronomers’ long-standing assumptions about galaxies and their constituent stars, about the evolution of our solar system, and about the nature and history of Earth.
Thr Thunderbolts Projects goes a step further and interpret much of what our early ancestors may have witnessed as awe-inspiring electrical events in the heavens—the source of myths and symbols around the world.

Cosmology

Today, magnetic fields are detected everywhere, even in the “empty” depths of intergalactic space. Magnetic fields cannot exist without causative electric currents. The naked electric force is 39 orders of magnitude (a thousand billion billion billion billion times) stronger than gravity. The visible universe is constituted almost entirely of electrically active plasma.
In the twentieth century, the pioneers of plasma science inspired a new school of investigation called plasma cosmology. Plasma cosmologists suggest that electricity is the primary force organizing spiral galaxies and the astonishing galactic clusters now seen in deep space.
Plasma cosmology has achieved surprising success in predicting major discoveries of the space age. This new perspective does not require purely theoretical inventions based on mathematical assumptions like the Big Bang, dark matter, dark energy, neutron stars, or Black Holes.

Dark matter is not baryonic matter. or any other form of matter for that matter..., its electromagnitism.

Read more on the quagmire science is headed towards, 11 dimension, the universe is a hologram, invisible matter and energy.... Something has gone badly wrong: https://dwahts.blogspot.com/2018/04/dark-matter-does-not-exist.html

Stars

An Electric Universe extends the findings of plasma cosmology to the formation and evolution of stars and their planetary satellites. Stars are formed at the intersections of galactic current filaments in dusty space plasma. The size of a star and its colour are determined electrically and may change suddenly. Novae and supernovae are the explosive response of stars to a power surge in their galactic circuit.
Proponents of the Electric Universe suggest that there are no isolated islands in the universe. All objects in space, from subatomic particles to galactic clusters, are connected by manifestations of the electric force acting in real-time.
The Standard Model of the Sun proposes that pressure at the core of the Sun provokes a thermonuclear reaction. Proponents of this model say that this thermonuclear furnace causes the Sun to shine.
The Electric Sun Model, on the other hand, envisions thermonuclear reactions and neutrino production at or close to the surface of the Sun where the maximum exchange between the Sun and its external environment occurs.
It is electricity that energizes the stars, including the Sun, in a form of glow discharge. This external power source explains why the temperature of the Sun increases above the photosphere to coronal temperatures of 2 million degrees. Powerful plasma feedback effects maintain a steady output of visible solar radiation while variations in power input show up in the familiar sunspot cycle.
It is in the nature of a glow discharge that all stars possess a weak electric field beyond the corona. As charged particles of the solar wind move away from the Sun, they continue to be accelerated due to the Sun’s electric field, which extends to the heliopause. Read more at the link below.
https://dwahts.blogspot.com/2019/01/assumptions-in-science-2-thermonuclear.html

BoldYour Knowledge center of Related websites:Bold

Holoscience: http://www.holoscience.com/wp/

My favourite elctric universe site and surely one of the premiere sites dedicated to the Electric Universe and plasma cosmology. They all look dated but the info is solid and that is what counts. These guys battle getting funded for a picnic let alone a large hadron colider. Developed and managed by Wallace Thornhill, the site contains all of his Holoscience articles over the past 12 years.

Electric Cosmos: http://electric-cosmos.org/

Don Scott’s site, Author of The Electric Sky.

Plasma Universe: http://www.plasma-universe.com/

Plasma-Universe.com: The nature of space plasma according to Anthony Peratt. A long-time proponent of plasma cosmology, Peratt is an associate director of Los Alamos National Laboratories and one of the leading experts on high-energy plasma discharge.

Plasma Resources: http://www.plasmaresources.com/
Your one-stop-non-shop for exploring plasma cosmology, our electric universe and almost anything else even remotely related to the electrical nature of space, climatology and our Earth.

Plasma Cosmology: http://plasmauniverse.info/
This site offers a straightforward introduction to the Plasma Universe. An excellent source for newcomers.

Electric Universe Wiki: https://www.electricuniverse.info/

The Electric Universe theory highlights the importance of electricity throughout the Universe. It is based on the recognition of existing natural electrical phenomena (eg. lightning, St Elmo’s Fire), and the known properties of plasmas (ionized “gases”) which make up 99.999% of the visible universe, and react strongly to electro-magnetic fields.