Earlier quoted context omitted.
You are still missing it completely.
I believe it is you missing the point. They're his keys. If I quit the company I'm working for, they can't just take all all my keys because at some point they gave me some. This is no different than my old neighbor, Mr. Taylor. He used to let us use the pool in his backyard until one of the kids pooped in it. He stopped letting those kids come to the pool. It's his pool, and it's his choice who can and can't use it.…
I just think that his behavior is intended to maximize the potential damage to everyone, he is well aware of that and does it on purpose, because someone hurt his feelings.
In my opinion there are other, more constructive options available.