This is such a dumb move on Kyrie's end. The best thing he could do for himself is to go to the Lakers with LeBron. Whether you love Bron or hate him, you and him have great basketball chemistry and compliment each other. LeBron will most likely give you the ball and give you more shots since he's moving past his prime and you're moving into yours.
The Lakers , although a bit chaotic now, is still a legendary franchise. You'll get to live in LA, lovely weather, beautiful women, celebrity house parties, etc. Your own girlfriend is from LA... There chances of you winning more championships if any at all are in LA. Idk what Kyrie is smoking or not smoking but BK doesn't do anything for him or his longevity.
Not to mention, if Kyrie never wins another title again, for the rest of his life the biggest highlight of his career will always be in 2016 with LeBron and everyone will constantly say to him "you should've joined LeBron on the Lakers" ...