Really? You would permanently remove someone from a community for one joke in bad taste? You wouldn't use any social skills of your own to, say, tell the person their joke isn't well received and they need to be more polite?
It was foolish to make the joke, it was even more foolish to make it on a digital format that cannot be rescinded. It's also foolish for people to immediately call for this person's removal from the community in perpetuity, rather than have a chat and explain that those jokes aren't funny.