I think you and the other posters just need to quit being overdramatic and using such over the top language. His "endgame" is simply getting a contract that pays him fair market value, same as any other player.
What was Jamie Benn's endgame? What was PK Subban's endgame? What was Pietrangelo's endgame? They both held out and missed time into training camp, and even into the season: both are signed long-term and are franchise players and I don't believe their fanbases are filled with animosity towards them. None of them were considered "divas" or "immature." It's just business.
The negotiation is being handled by his agent. Joey is a 22 year old kid who has never been to college. It's in the hands of his agency who are just doing their job, trying to get him the best deal possible. His agent is known for taking his time and using holdouts as negotiation leverage, that's just his style of doing business. It has nothing to do with Joey the player or the person. There is no "battle" and it's wrong for fans to start taking a routine business negotiation between team and agent as personal slight from Joey to the team/fans/city. Just chillax and eventually he'll sign and be great again this year as our #1 center. And when that happens all the "trade joey" "ship his azz outta town" "he's a diva" people will feel as dumb as the people who were upset we traded Dorse.