What proprietary connectors? There was one significant one. Singular. Lightning. That's it, in the recent history of Apple. And thank God they created it: micro-USB sucks. There was a legitimate engineering need for it.
The other things you mention have all been a great service to users, in protecting their security and privacy.
Um, there has been ONE new iPhone port design. One. Lightning. Which I already mentioned. As for MagSafe, that's a strength, and there have been a grand total of TWO versions of that. Compare to the 900 trillion different PC charging sockets during that time.
The other things you mention have all been a great service to users, in protecting their security and privacy.