support and mmr

dear riot why do you have to screw me over? i main support. and i do a really good job at it. ending many matches with 20+ assists. me and bot lane do really well in most matches. but you continutally place me with bad players and it hurts my rank. and it perpetuates a never ending cycle were im now deranking and getting worse and worse players. it is a team game. but my rank is determined by other players. i do not want to play a hyper carry. i want to be a support. i am a support main it is what i love to do. but a support cannot carry a match. and your entire match making system is based on weither or not you single handedly carry a team of 5 people. and that is fail. i want to be placed where i should be and i want to be placed with people of my skill level. and i want to play with tactics and the meta. riot you really suck.