I'm glad we cleared up history and it makes perfect sense why Tesla isn't using CCS in America. You don't seem to care that it would benefit all of the bad networks in America while costing the well run one.
I'm not sure why it matters what the rest of the world does. A charging plug seems a lot less of a change than say putting the driver on a different side of the car. Bonus points, you can even use a converter between the two plugs if you take your American Tesla to Europe!
The only reason Tesla uses NACS in the US is that CCS did not exist at the time they started rolling out the Supercharger network.