you have a nakedly ridiculous habit of reducing nearly every argument to some variation of "blah blah, it's boogie's fault, blah."
it's much more likely that demarcus' behavior is but a component of a much larger thought process for rudy. it could just as easily be argued that he wants out because the kings are on their fourth head coach in the three years since he was traded to sacramento. and while many kings fans are excited about dave joerger's hiring, there's no reason to believe that the players feel the same way about starting from square one as each new season approaches, particularly rudy, who re-signed in part because of the relationship he had with mike malone, who was promptly canned not one month after rudy put ink to an extension with the kings.
then there's the front office, who is on its second general manager since rudy was acquired, and while i maintain very cautious optimism about the work vlade is doing as gm, there is once again no reason to believe that the players feel the same way. the kings' draft selections send mixed signals about what the future holds for this franchise, and even though the team's free agency signings represented short-term prudence, they also don't inspire any kind of excitement. vlade kept the team from being locked into weighty long-term deals for mediocre players, but with the kings, it's always a culture of "next year." as in, "next year" will be the year we hit it big in the draft, or "next year" will be the year we sign a worthy free agent, or "next year" will be the year we turn the corner.
then there's sacramento itself. it's not exactly cosmopolitan, nor has it ever held much appeal for major nba talent. yes, the kings will open the 2016-2017 season in a fantastic new arena, and while that matters to kings fans, i imagine it matters much less to the players. they will surely enjoy playing in a world class arena, but i also imagine the average nba player is much more compelled by circumstances beyond the building they play in 41 times a season. sacramento remains a small market franchise with a poor track record of success and a recent history of dysfunction that any player of note would happily escape (the big bad boogie cousins excepted, interestingly enough).
rudy gay is 30 years old. he's playing for his last major contract in the nba. he's playing out the remaining years of his prime. and with no signs that the kings are about to become serious playoff contenders anytime soon, i haven't the slightest problem with rudy deciding that he'd like to move on. but to paint rudy's desire to leave as some kind of referendum against demarcus cousins is an especially putrid brand of confirmation bias from a poster who's long been an evangelist for the boogie bashing set.