3 games, all trolls on my team

Fix your system riot, how many years of people complaining will it take before you actually stop being so lazy as to actually fix your game. It makes the gameplay terrible and a horrible experience when you play for 3 hours, get your promotion in ranked, then get 3 trolls in a row and bam, your back where you started. You say you get to have the trolls on the enemy team just as frequently but so far, hasnt been the case.