Tesla made a big mistake by not making its charger open standard and open source. They could potentially have set the standard, that would have been good for everybody.
As a consumer, the Tesla charging network is a significant selling point over other electric vehicles. It's unclear to me that standardizing the charger would benefit their business position (although I agree it would benefit society!).
Just because you have the same charger, doesn't mean that you allow other vehicles to charge at Tesla Superchargers. Those are 2 different questions.