I completed the "hard way" uninstall of the Origin client per your directives, then went and downloaded the most updated version from the origin website. I am still unable to launch SimCity....it will say "install" and it is sitting in my download manager, but when I go to click on install it flashes as "finalizing 0%" for half of a second then goes back to "install". My Mac is completely up to date with all software updates completed.
Edited title to better reflect issue -