Let me just squash this right now.
You were banned for being blatantly disrespectful to the administrating staff. You were upset that another user, a friend of yours, was banned, and proceeded to berate Russia and dole out blanket insults to all other administrators. You were banned for acting inappropriately for like...ten minutes straight - well after the previous conflict wrought by the ban of your buddy had subsided. You were muted, and proceeded to continue trash talking in team chat. You deserved every bit of the ban.
It should occur to one that if he insults the administrating staff, he can expect to be punished.