I don't think your argument is grounded on reality. Applying whitespace changes does create merge conflicts, and if you have a hook that is designed to introduce said white changes at each commit of a rebase them you are going to have frequent merge conflicts.
Keep also in mind that minor changes such as renaming a variable can and will introduce line breaks. Thus even with a pristine codebase that was formatted to perfection you will get merge conflicts.
> If any of the commits you are rebasing is e.g. breaking formatting rules, they shouldn't have been committed that way in the first place.
You're letting the world know you have little to no programming experience.