Balance in Ranked Games/Make smurfing a violation of TOS

Ranked games are supposed to be a competition between evenly matched players in an effort for advancement and improvement of player skill. The last few games that I have solo queued into have been a mismatch of players of laughably different skill levels. Normal games should be doing the same but I can understand if there is less of a call for it. Matchmaking in ranked should NOT be on the back burner rito. Also, getting into a ranked game with a smurf who is a MUCH higher elo makes things difficult as well. Players who smurf should be banned on the smurf account. There is no reason to have multiple accounts and allowing them to decimate lower elo players simply because they're having a hard time at their own skill level. It makes the lower tier players mad and not want to play the game.