CONSTANT UNRANKED PLAYERS ON MY TEAM IN RANKED??? WHY? AM I ALONE?

6 out of my 7 last ranked matches I had 1-2 unranked players on my team who fed. A total of 8. 6 of whom contributed to 9-38% of the kills respectively. 1 out of my 7 ranked matches the enemy team had an unranked player I would understand if it happened once in awhile but back to back? I'M NOT GOOD ENOUGH TO CARRY THESE PLAYERS. THEY UNINTENTIONALLY FEED AND MAKE THE 4V5 EXTREMELY DIFFICULT. Any explanation as to why this is happening?