ok, first lesson:
the galactic current sheet is not a two dimensional surface, it is an oscillating plasma emission that comes from the centre of all of the stars in the galaxy, dominated by the giant stars in the center.
it is fuzzy and it doesn't have boundaries, it's fuzzy. it swings up and down like a ... i forget the name of it, some spanish dance where the women wear these skirts that are essentially a circle that drapes down and when they spin it, by the bournulli (fuck my spelling) effect it spins as a flat disk with ripples.
the evidence of cyclic geomagnetic reversals is far from arguable. there is evidence for every single one going back at least until 72000 years ago, the most recent one has been dubbed the "tianchi" excursion because the most irrefutable evidence of its occurance is found in china near the Tianchi volcano.
i have too many things to deal with in learning and mastering computer programming to be a "reliable mentor" on the subject of the pole shift physics, and furthermore, the influence of electromagnetic effects in play across the universe, in planets, in stars, and in galaxies, is greatly misunderstood by the mainstream of science, who have had their minds polluted with this narrative about "the unwashed masses" causing disaster.
the fact that the disasters happen regardless of, and not only regardless of our activities, DRIVE our civilization cycles, should be enough but until you understand that LOGICALLY bigger things have greater influence than smaller things, you will not get it.