If you keep applying the side load eventually you won’t be able to turn the bolt at all. The bolt is the stabilizer screw jack. The side load is the aerodynamic forces transferred from surface of the stabilizer to the jack screw.
Although I agree with the overall concept of your post - the quoted portion above is misleading. The ball screw " NUT " is essentially a pivoted (gimballed ) holder attached to the lever arm of the HS. Thus the increased HS load from aero forces combined with elevator forces is reacted thru the pivot such that the " NUT" is loaded for the most part Axially along the jackscrew. True the jackscrew is also pivoted ( gimballed ) at right angles to the axis of the jackscrew to reduce or eliminate the mounting bracket movements and deflections in the tail structure and reduce chances for ' binding ' due to misalignment.
see--- satcom.guru/2019/08/connecting-dots-from-command-to-action
Wednesday, August 21, 2019
Connecting the Dots: From Command to Action - scroll down to excellent illustrations of system.
As to helping the gearing/use of the trim wheel a very basic principle applies. To increase torgue one must gear down the system which then requires MORE revolutions to get the same 'displacement ' For example if 20 revolutions move the system one degree with x torgue applied, then 40 revolutions at 1/2 the torgue would also move the system one degree.
Thus we must consider some sort of ' high speed ' motor to assist- appropriately geared.