Again, did you not read the user agreement? They don't "steal" from you by banning you. You don't get "provided" what you paid for. You don't get an item that you get to keep no matter what. You can have a disc or download of the game all you want, but you are paying for the
service, which is a
license. They can revoke it at any time. You do not own your service account, it is
licensed to you. If you go to a store and buy an item, obviously that store can't just come to your house and take it back. This is not what that is. It is a subscription service.
Also you're literally arguing against yourself at this point. "Here's a fake scenario to prove my point, but also that scenario will never happen, so that's also proof that I'm right". It's very unlikely that SE will just delete someone's account because that makes no sense, but they reserve the right to. That's. what. you. agree. to. Here's the link to the
user agreement again in case you missed it and would like to read it. I recommend paying extra attention to the section that says "AT ANY TIME FOR ANY REASON OR FOR NO REASON". It's pretty relevant. But what do I know, I didn't take A Class on contract law.