tl/dr
But what it comes down to it is the NBA is a private entity made up of 30 owners. If you have signed up to it you must adhere to certain rules. If all the other 29 owners don't think you are fit to be operating the team, then they are perfectly within their rights to vote you out, under the NBA constitution. They key point here is the NBA is a private entity - this is nothing to do with whether or not he has broken the Law.
/discussion
This is exactly right. This should have been the end of the discussion.