Most of those aren't "based" there. They're studios or offshoots. It is much easier to close down a studio and move them elsewhere than the "head office". Of course, since Canada and Europe think their laws apply globally...that may not help.
Our current reality so much mirrors this show I watched called Continuum where in the future we are ruled by the "Corporate Congress".
They did such a good job of showing how something simple like a wristband that tracks all of your health data to help you and your doctor treat you which was then used by the government/corporations to establish control.
It's crazy that reality mirrors fiction so much. It seems like we're actually headed for a totalitarian corporate state.