Vector4Food
This job would be easier without all the airplanes
You actually asked a lot of different questions not just about movements, but I'll answer that one as well. NavCan claims there are more than 1,900 controllers and they moved 12M last year which equals 6,315 ops per controller.
Rinaldi's latest statement to Congress claimed we have 13,882 FAA employees controllers with another 1,375 contract controllers so 15,257 total excluding military facilities and their operations. The USA actually had 134.11M total ops last year according to ATADS which equates to
8,790 ops per controller.
So to my point of all of this, your statement that Canada moves equalivilent traffic to California was not accurate. In fact Canada moves 72% of the traffic volume on average that America does.
Therefore, simple reasoning would mean there are plenty of busy or busier airspaces than some in the US, just as a matter of averaging.
Like I've said, the cowboy movie persona of American controllers simply is not true.
Also the IFR-IFR loss of separation rates is public information
3.3/100,000 in the US compared to
0.75/100,000
So I think comparing US airspace and requirements to Canadian ones is a much closer parallel than one outside the industry might initially think.