Calendar.....don't get me started!!!!!

So, source of immediate frustration.
In the Calendar view, to the right of the calendar is the To Do field.


In the upper left is a list of Calendars.

I highlight a field "Calls"

on the right side in the To Do window, I double click the screen to get a new to do item, in the "Calls" calendar (why are to do's listed as calendars in the first freakin place anyway????).

Naturally, rather than have a Calls to do pop up, I get another calendar. Making me go in to the open window and manually change back the calendar type to what I want.

Does anyone at Apple actually use their software? Do they have a clue?
Maybe it's me. Totally plausible. But for now, let's assume no. Let's assume that when you have one calendar highlighted and you go to add another item, it's in that calendar NOT another one!!!

My ongoing astonishment and frustration with Mac's Calendar and iPhone is that the iPhone doesn't sync to do's. WTF????? Really??? Like I said, does anyone at Apple actually use this software? Are they not aware how off base this is?