It simply is not possible to force click in the way you want. All you can do is simulate.
First of all, you would need to pick the coordinate where the click will be. Second, you would need to FIND which is the first element UNDER those coordinates so that then you can invoke that elements click() function.
That is one hell of a job if you ask me. You'd have to do tremendous calculations and storage of elements positions relative to the page's X and Y, plus the elements dimensions AND its z-index.
Impossible, no, but darn near close. Good luck.