The reason no one plays jungle

So, I just went into normals playing Sej. I lock in to a seemingly good team (Malz mid, Zac top, me jg, Kalista adc, Thresh supp). I have never been more wrong in my life. The first red flag was when Kalista or Thresh (not sure which one), stole my buff, did not apologize, and refused to give me another leash. I ended up being three levels behind the enemy jungler, and this severely effected my gameplay. Second red flag was when Malzahar died because he tower dived Akali, and apparently it was my fault because "I was not ganking". Third was when I said "Kalista and Thresh, could you please communicate with the rest of the team a bit?", as neither botlaners had pinged or communicated in chat the entire game. Kalista then proceeded to attack me for being "a bad jungler" and "gg 0 ganks for bot shit jungle". My entire team then gave me a lecture on how I should uninstall and "gg why do all junglers suck nowadays lolololol". I had to DC from that match. I have a chat restriction AND leaverbuster queue, but honestly, I don't even care anymore. Moral of the story, do not be an asshole to your jungler. Junglers are not supposed to win your lane for you, and if you take their buff, LEASH THEM AGAIN. I am never playing jungle. Ever. Again.