"Yes electromagnetic forces are part of standard
theory but more often that not they talk about
the presence of magnetism & completely leave
out electricty....wheras the presence of one
means both co-exist...."
Not sure what you mean. Maxwell, Faraday etc. There isn't a physicist on the planet who doesn't connect electricity with magnetism.
"The predominant force in cosmology is Gravity
even though this is only an attractive force
& is 10 to the Power of 39 weaker than the
electromagnetic force which is both an attractive
& repulsive force."
Theories about anti-gravity also exist and have been used to explain the universe's expansion. But as far as I know, no one has figured if it exists or how to test for it.
The incidence of craters is well explained by the movement of asteroids, especially in the early universe.
Your probability theory reminds me of Richard Feynman's example about vehicles in the parking lot outside his office. It went something like this: "Can you believe it? I just saw a vehicle outside with license plate G334VGN. What are the odds?" He was demonstrating how folks often get confused by cause and effect to misuse probability models. Count yourself one of them! You can't do probability backwards from the result like that.
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these craters have been