The “Great Attractor” is the apex of a gigantic black hole through which the entire universe is falling.
Galaxies which are “farther down” the hole appear to be receding from us because they are moving faster than us.
Galaxies for which we are “farther down” also appear to be receding because we are moving faster than they.
The “Big Bang” is the event horizon of this black hole.
So, what’s behind THAT curtain? Where did that come from? You avoid the question of origins and punt the issue into another ‘science”-based tortuous tale....
Cyclic reasoning is, well, boring.
Sounds like conjecture as no one has actually seen or verified what the GA actually is or is not.